/* =============================================================================
   MAIN STYLES - Classcheck.in
   Complete Updated Version with All Fixes
   ============================================================================= */

/* =============================================================================
   FONT DECLARATIONS
   ============================================================================= */

/* Modern Variable Font (Primary) */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('../fonts/inter-var.woff2') format('woff2-variations');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Variable Italic Font */
@font-face {
    font-family: 'Inter';
    font-style: italic;
    font-weight: 100 900;
    font-display: swap;
    src: url('../fonts/inter-var-italic.woff2') format('woff2-variations');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Fallback Fonts for Older Browsers */
@font-face {
    font-family: 'Inter Fallback';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter-400.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter Fallback';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/inter-600.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter Fallback';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/inter-700.woff2') format('woff2');
}

/* =============================================================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================================================= */

:root {
    /* Colors */
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --primary-light: #a7a2f7;
    --secondary: #10B981;
    --secondary-hover: #059669;
    --secondary-light: #6EE7B7;
    
    /* Additional Colors */
    --orange: #F97316;
    --orange-light: #FED7AA;
    --purple: #8B5CF6;
    --purple-light: #DDD6FE;
    --green: #22C55E;
    --green-light: #BBF7D0;
    --blue: #3B82F6;
    --blue-light: #DBEAFE;
    
    /* Grays */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', 'Inter Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-out;
    --transition-base: 300ms ease-out;
    --transition-slow: 500ms ease-out;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* =============================================================================
   BASE STYLES
   ============================================================================= */

* {
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Font Loading Optimization */
.fonts-loading {
    visibility: hidden;
}

.fonts-loaded {
    visibility: visible;
}

/* =============================================================================
   SCROLL PROGRESS BAR
   ============================================================================= */

.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    z-index: var(--z-fixed);
    transition: width 0.2s ease-out;
}

/* =============================================================================
   LAYOUT COMPONENTS
   ============================================================================= */

.page-wrapper {
    max-width: 100%;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

.section-padding {
    padding: var(--spacing-16) 0;
}

@media (min-width: 768px) {
    .section-padding {
        padding: var(--spacing-24) 0;
    }
}

/* =============================================================================
   HEADER & NAVIGATION - FIXED VERSION
   ============================================================================= */

.header-main {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    width: 100%;
    left: 0;
    right: 0;
}

.nav-container {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* Mobile-First Navigation Content */
.nav-content {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start; /* Align to top instead of center */
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-2);
    min-height: 3.5rem;
}

@media (min-width: 480px) {
    .nav-content {
        grid-template-columns: 1fr auto;
        align-items: center;
        padding: 0 var(--spacing-4);
        height: 4rem;
        min-height: auto;
    }
}

@media (min-width: 640px) {
    .nav-content {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .nav-content {
        display: flex;
        justify-content: space-between;
        padding: 0 var(--spacing-8);
    }
}

/* =============================================================================
   MOBILE HEADER LAYOUT - FIXED VERSION
   ============================================================================= */

/* Brand Section - MOBILE OPTIMIZED */
.nav-brand {
    display: flex;
    flex-direction: column; /* Stack logo and motto vertically on mobile */
    align-items: flex-start;
    flex-shrink: 0;
    max-width: 60%; /* More space for mobile buttons */
}

@media (min-width: 640px) {
    .nav-brand {
        flex-direction: row; /* Horizontal layout on larger screens */
        align-items: center;
        max-width: 70%;
    }
}

@media (min-width: 768px) {
    .nav-brand {
        max-width: none; /* No restriction on tablet+ */
    }
}

.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.brand-logo {
    height: 1.8rem; /* Smaller on mobile */
    width: auto;
    margin-right: var(--spacing-2);
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .brand-logo {
        height: 2rem;
    }
}

@media (min-width: 768px) {
    .brand-logo {
        height: 2.5rem; /* Larger on tablet+ */
    }
}

.brand-text {
    font-weight: 700;
    font-size: var(--font-size-base); /* Smaller on mobile */
    color: var(--primary);
}

@media (min-width: 640px) {
    .brand-text {
        font-size: var(--font-size-lg);
    }
}

@media (min-width: 768px) {
    .brand-text {
        font-size: var(--font-size-xl);
    }
}

/* MOTTO - RESPONSIVE & MULTI-LINE FRIENDLY */
.brand-tagline {
    font-size: 0.625rem; /* Very small on mobile */
    color: var(--gray-500);
    font-weight: normal;
    display: block; /* Always visible but as block element */
    line-height: 1.2;
    margin-top: 0.125rem; /* Small gap above motto */
    margin-left: 0; /* No left margin on mobile */
    max-width: 100%;
    word-wrap: break-word;
}

@media (min-width: 480px) {
    .brand-tagline {
        font-size: 0.7rem;
    }
}

@media (min-width: 640px) {
    .brand-tagline {
        font-size: var(--font-size-xs);
        margin-left: var(--spacing-2); /* Add left margin on larger screens */
        margin-top: 0;
        display: inline-block; /* Back to inline on larger screens */
    }
}

@media (min-width: 768px) {
    .brand-tagline {
        margin-left: var(--spacing-3);
        font-size: var(--font-size-sm); /* Larger on desktop */
    }
}

/* Mobile Navigation - MORE SPACE */
.nav-mobile {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .nav-mobile {
        display: none;
    }
}

/* Smaller mobile buttons */
.btn-primary-sm,
.btn-secondary-sm {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: 0.7rem;
    border-radius: var(--radius);
    white-space: nowrap;
}

@media (min-width: 480px) {
    .btn-primary-sm,
    .btn-secondary-sm {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-xs);
    }
}

/* Mobile Menu Button - SMALLER */
.mobile-menu-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 2.5rem; /* Smaller button */
    height: 2.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

@media (min-width: 480px) {
    .mobile-menu-btn {
        width: 3rem;
        height: 3rem;
        padding: var(--spacing-2);
    }
}

.hamburger-line {
    display: block;
    width: 1.25rem; /* Smaller lines */
    height: 2px;
    background: var(--gray-600);
    margin: 1.5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

@media (min-width: 480px) {
    .hamburger-line {
        width: 1.5rem;
        margin: 2px 0;
    }
}

/* Desktop Navigation */
.nav-desktop {
    display: none;
    align-items: center;
    gap: var(--spacing-4);
}

@media (min-width: 1024px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background: var(--primary);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-left: var(--spacing-4);
}

.nav-welcome {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    display: none;
}

@media (min-width: 1280px) {
    .nav-welcome {
        display: block;
    }
}

/* Mobile Navigation */
.nav-mobile {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

@media (min-width: 1024px) {
    .nav-mobile {
        display: none;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 3rem;
    height: 3rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--gray-100);
}

.hamburger-line {
    display: block;
    width: 1.5rem;
    height: 2px;
    background: var(--gray-600);
    margin: 2px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.mobile-menu-overlay.show {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: white;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.mobile-menu-overlay.show .mobile-menu-content {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-200);
}

.mobile-brand {
    display: flex;
    align-items: center;
}

.mobile-logo {
    height: 2rem;
    width: auto;
    margin-right: var(--spacing-2);
}

.mobile-brand-text {
    font-weight: 700;
    color: var(--primary);
}

.mobile-close-btn {
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    position: relative;
    border-radius: var(--radius);
}

.mobile-close-btn:hover {
    background: var(--gray-100);
}

.close-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1rem;
    height: 1rem;
}

.close-icon::before,
.close-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--gray-600);
    border-radius: 2px;
}

.close-icon::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.close-icon::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.mobile-nav {
    flex: 1;
    padding: var(--spacing-4) 0;
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
    background: var(--gray-50);
    color: var(--primary);
    border-left-color: var(--primary);
}

.mobile-auth {
    padding: var(--spacing-4);
    border-top: 1px solid var(--gray-200);
}

.mobile-welcome {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-bottom: var(--spacing-3);
}

.mobile-auth-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: var(--spacing-3);
    margin-bottom: var(--spacing-2);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.mobile-auth-btn.primary {
    background: var(--primary);
    color: white;
}

.mobile-auth-btn.primary:hover {
    background: var(--primary-hover);
}

.mobile-auth-btn.secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.mobile-auth-btn.secondary:hover {
    background: var(--gray-200);
}

/* Marquee - Full Width Fix */
.marquee-container {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-sm);
    font-weight: 500;
    overflow: hidden;
    white-space: nowrap;
    width: 100%;
    position: relative;
}

.marquee-content {
    display: inline-block;
    animation: marquee 30s linear infinite;
    will-change: transform;
}

.marquee-content > * {
    display: inline-block;
    padding: 0 var(--spacing-6);
}

/* Mobile Layout Optimization */
@media (max-width: 375px) {
    .nav-content {
        padding: 0 var(--spacing-2);
    }
    
    .brand-tagline {
        font-size: 0.55rem;
        margin-left: var(--spacing-1);
    }
    
    .nav-mobile {
        gap: var(--spacing-1);
    }
    
    .btn-primary-sm,
    .btn-secondary-sm {
        padding: var(--spacing-1) var(--spacing-2);
        font-size: 0.7rem;
    }
}

/* =============================================================================
   VERY SMALL SCREEN FIXES (320px - 375px)
   ============================================================================= */

@media (max-width: 375px) {
    .nav-content {
        padding: 0 var(--spacing-2);
        height: auto; /* Allow height to adjust */
        min-height: 3.5rem;
        flex-wrap: wrap; /* Allow wrapping if needed */
    }
    
    .nav-brand {
        max-width: 55%; /* Even more space for buttons */
    }
    
    .brand-tagline {
        font-size: 0.5rem;
        line-height: 1.1;
        margin-top: 0.0625rem;
    }
    
    .nav-mobile {
        gap: 0.25rem;
    }
    
    .btn-primary-sm,
    .btn-secondary-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.6rem;
        min-width: auto;
    }
    
    .mobile-menu-btn {
        width: 2rem;
        height: 2rem;
    }
    
    .hamburger-line {
        width: 1rem;
        height: 1.5px;
        margin: 1px 0;
    }
}

/* ULTRA SMALL SCREENS (iPhone SE, etc.) */
@media (max-width: 320px) {
    .nav-content {
        padding: 0 var(--spacing-1);
    }
    
    .brand-logo {
        height: 1.5rem;
        margin-right: var(--spacing-1);
    }
    
    .brand-text {
        font-size: var(--font-size-sm);
    }
    
    .brand-tagline {
        font-size: 0.45rem;
    }
    
    .btn-primary-sm,
    .btn-secondary-sm {
        padding: 0.25rem 0.375rem;
        font-size: 0.55rem;
    }
}



/* =============================================================================
   BUTTONS - UPDATED COLORS
   ============================================================================= */

.btn-base {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    white-space: nowrap;
}

/* Primary Button - BLUE (Main CTA) */
.btn-primary {
    background: var(--primary);
    color: white;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary-sm {
    background: var(--primary);
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-primary-sm:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary-lg {
    background: transparent;
    color: var(--primary);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
    text-decoration: none;
    border: 2px solid var(--primary);
    transition: all var(--transition-base);
    display: inline-block;
    text-align: center;
    box-shadow: none;
}

.btn-primary-lg:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Secondary Button - GREEN (Demo/Secondary Actions) */
.btn-secondary {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border: 1px solid rgba(79, 70, 229, 0.3);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(79, 70, 229, 0.2);
    border-color: var(--primary);
}

.btn-secondary-sm {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border: 1px solid rgba(79, 70, 229, 0.3);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-secondary-sm:hover {
    background: rgba(79, 70, 229, 0.2);
    border-color: var(--primary);
}

.btn-secondary-lg {
    background: transparent;
    color: var(--secondary);
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
    text-decoration: none;
    border: 2px solid var(--secondary);
    transition: all var(--transition-base);
    display: inline-block;
    text-align: center;
    box-shadow: none;
}

.btn-secondary-lg:hover {
    background: var(--secondary);
    color: white;
    border-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--gray-600);
    border: 1px solid var(--gray-300);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-outline-sm {
    background: transparent;
    color: var(--gray-600);
    border: 1px solid var(--gray-300);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-block;
}

.btn-outline-sm:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

/* =============================================================================
   THEME COLOR CONSISTENCY
   ============================================================================= */

/* Primary Actions - BLUE */
.primary-action,
.cta-button {
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
}

.primary-action:hover,
.cta-button:hover {
    background: var(--primary-hover) !important;
    border-color: var(--primary-hover) !important;
}

/* Secondary Actions - GREEN */
.secondary-action,
.demo-button {
    background: var(--secondary) !important;
    color: white !important;
    border-color: var(--secondary) !important;
}

.secondary-action:hover,
.demo-button:hover {
    background: var(--secondary-hover) !important;
    border-color: var(--secondary-hover) !important;
}

/* =============================================================================
   HERO SECTION
   ============================================================================= */

.hero-section {
    background: linear-gradient(135deg, #f0f4ff 0%, #e6fffa 100%);
    position: relative;
    padding: var(--spacing-16) 0;
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero-section {
        padding: var(--spacing-24) 0;
    }
}

.hero-content-wrapper {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    text-align: center;
    position: relative;
    z-index: 10;
    transition: opacity 0.3s ease-out;
    will-change: opacity;
}

@media (min-width: 640px) {
    .hero-content-wrapper {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .hero-content-wrapper {
        padding: 0 var(--spacing-8);
    }
}

.hero-content-wrapper.fade-out-quick {
    opacity: 0;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-2) var(--spacing-4);
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-4);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-6);
    letter-spacing: -0.025em;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: var(--font-size-5xl);
    }
}

.hero-subtitle {
    max-width: 48rem;
    margin: 0 auto var(--spacing-8);
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    justify-content: center;
    margin-bottom: var(--spacing-8);
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
    }
}

.text-gradient {
    background: linear-gradient(120deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% auto;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    animation: textGradientFlow 5s linear infinite;
}

.highlight-primary {
    font-weight: 600;
    color: var(--primary);
}

.highlight-secondary {
    font-weight: 600;
    color: var(--secondary);
}

/* Trust Indicators */
.trust-indicators {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-6);
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.trust-item {
    display: flex;
    align-items: center;
}

.trust-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: #22C55E;
    margin-right: var(--spacing-2);
}

/* Hero Animation */
.hero-animation {
    margin-top: var(--spacing-12);
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    aspect-ratio: 2 / 1;
}

@media (min-width: 768px) {
    .hero-animation {
        margin-top: var(--spacing-16);
        max-width: 48rem;
    }
}

.hero-svg {
    width: 100%;
    height: 100%;
    opacity: 0.6;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-20);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    cursor: pointer;
    color: var(--gray-600);
    transition: color var(--transition-base);
    animation: bounce 2s infinite;
}

.scroll-indicator:hover {
    color: var(--primary);
}

/* Particles.js Container */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

/* =============================================================================
   SECTION HEADERS
   ============================================================================= */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
    padding: var(--spacing-8);
    background: linear-gradient(to right, rgba(79, 70, 229, 0.05), rgba(16, 185, 129, 0.05));
    border-radius: var(--radius-xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--font-size-4xl);
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: var(--font-size-5xl);
    }
}

.gradient-text {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    max-width: 32rem;
    margin: 0 auto;
}

/* =============================================================================
   FEATURES SECTION
   ============================================================================= */

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--gray-100);
}

.feature-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.feature-card.special {
    border: 2px solid #F97316;
    background: linear-gradient(to bottom right, rgba(249, 115, 22, 0.05), transparent);
}

.feature-icon-wrapper {
    position: relative;
    margin-bottom: var(--spacing-6);
    display: flex;
    justify-content: center;
}

.feature-icon-bg {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    filter: blur(1rem);
    transition: all var(--transition-base);
}

.feature-icon-wrapper.primary .feature-icon-bg {
    background: rgba(79, 70, 229, 0.1);
}

.feature-icon-wrapper.secondary .feature-icon-bg {
    background: rgba(16, 185, 129, 0.1);
}

.feature-icon-wrapper.orange .feature-icon-bg {
    background: rgba(249, 115, 22, 0.1);
}

.feature-icon-wrapper.purple .feature-icon-bg {
    background: rgba(139, 92, 246, 0.1);
}

.feature-icon-wrapper.green .feature-icon-bg {
    background: rgba(34, 197, 94, 0.1);
}

.feature-icon-wrapper.blue .feature-icon-bg {
    background: rgba(59, 130, 246, 0.1);
}

.feature-card:hover .feature-icon-bg {
    filter: blur(2rem);
}

.feature-icon {
    position: relative;
    width: 4rem;
    height: 4rem;
    transition: transform var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-icon-wrapper.primary .feature-icon {
    color: var(--primary);
}

.feature-icon-wrapper.secondary .feature-icon {
    color: var(--secondary);
}

.feature-icon-wrapper.orange .feature-icon {
    color: var(--orange);
}

.feature-icon-wrapper.purple .feature-icon {
    color: var(--purple);
}

.feature-icon-wrapper.green .feature-icon {
    color: var(--green);
}

.feature-icon-wrapper.blue .feature-icon {
    color: var(--blue);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
}

.feature-badge {
    font-weight: 700;
    margin-bottom: var(--spacing-3);
    font-size: var(--font-size-sm);
}

.feature-badge.primary {
    color: var(--primary);
}

.feature-badge.secondary {
    color: var(--secondary);
}

.feature-badge.orange {
    color: var(--orange);
}

.feature-badge.purple {
    color: var(--purple);
}

.feature-badge.green {
    color: var(--green);
}

.feature-badge.blue {
    color: var(--blue);
}

.feature-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}

.tag {
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.tag.primary {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
}

.feature-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}

.feature-stats.triple {
    grid-template-columns: repeat(3, 1fr);
}

.stat {
    padding: var(--spacing-2);
    border-radius: var(--radius-lg);
}

.stat.secondary {
    background: rgba(16, 185, 129, 0.1);
}

.stat.blue {
    background: rgba(59, 130, 246, 0.1);
}

.stat-value {
    font-weight: 600;
    color: var(--secondary);
}

.stat.blue .stat-value {
    color: var(--blue);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
}

.feature-highlight {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-4);
}

.highlight-badge {
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.highlight-badge.orange {
    background: rgba(249, 115, 22, 0.1);
    color: var(--orange);
}

.feature-status {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-4);
}

.status-indicator {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
}

.status-indicator.purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple);
}

.ping {
    position: absolute;
    display: inline-flex;
    height: 0.75rem;
    width: 0.75rem;
    border-radius: 50%;
    animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
    opacity: 0.75;
}

.status-indicator.purple .ping {
    background: var(--purple);
}

.status-text {
    position: relative;
    margin-left: var(--spacing-4);
}

.feature-emojis {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}

.emoji-badge {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: rgba(34, 197, 94, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
}

/* =============================================================================
   HOW IT WORKS SECTION
   ============================================================================= */

.bg-gradient-light {
    background: linear-gradient(to bottom right, var(--gray-50), white);
}

.background-elements {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.bg-element {
    position: absolute;
    width: 18rem;
    height: 18rem;
    border-radius: 50%;
    opacity: 0.05;
    filter: blur(3rem);
}

.bg-element.primary.top-left {
    top: 0;
    left: 0;
    background: var(--primary);
    transform: translate(-50%, -50%);
}

.bg-element.secondary.bottom-right {
    bottom: 0;
    right: 0;
    background: var(--secondary);
    transform: translate(50%, 50%);
}

.progress-line {
    position: relative;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, var(--primary), var(--secondary), var(--primary));
    transform: translateY(-50%);
}

.progress-line-fill {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--primary), var(--secondary), var(--primary));
    opacity: 0.5;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    margin-top: var(--spacing-12);
    position: relative;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-8);
    }
}

.step-card {
    position: relative;
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.step-card:hover {
    box-shadow: var(--shadow-2xl);
    transform: translateY(-8px);
}

.step-number {
    position: absolute;
    top: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

.step-card:hover .step-number {
    transform: translateX(-50%) scale(1.1);
}

.step-number.primary {
    background: linear-gradient(to bottom right, var(--primary), var(--primary-hover));
}

.step-number.secondary {
    background: linear-gradient(to bottom right, var(--secondary), var(--secondary-hover));
}

.step-icon {
    margin: var(--spacing-6) auto var(--spacing-4);
    width: 4rem;
    height: 4rem;
    transition: transform var(--transition-base);
}

.step-card:hover .step-icon {
    transform: scale(1.1);
}

.step-icon.primary {
    color: var(--primary);
}

.step-icon.secondary {
    color: var(--secondary);
}

.step-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
    text-align: center;
}

.step-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    text-align: center;
    line-height: 1.6;
}

.step-features {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.step-feature {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-2);
}

.step-feature-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: var(--spacing-2);
    flex-shrink: 0;
}

.step-feature-icon.primary {
    color: var(--primary);
}

.step-feature-icon.secondary {
    color: var(--secondary);
}

/* =============================================================================
   PRICING SECTION
   ============================================================================= */

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    align-items: stretch;
    margin-top: var(--spacing-12);
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.pricing-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    box-shadow: var(--shadow-2xl);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.03);
    z-index: 10;
}

.popular-badge {
    background: var(--primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    position: absolute;
    top: 0;
    right: var(--spacing-4);
    transform: translateY(-50%);
}

.pricing-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
    text-align: center;
}

.pricing-title.pro {
    color: var(--primary);
}

.pricing-price {
    text-align: center;
    margin: var(--spacing-4) 0;
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--gray-900);
}

.price-period {
    font-size: var(--font-size-lg);
    font-weight: normal;
    color: var(--gray-500);
}

.pricing-description {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-6) 0;
    flex-grow: 1;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.pricing-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-3);
}

.pricing-feature.highlight {
    font-weight: 600;
    color: var(--gray-700);
}

.pricing-icon {
    width: 1.1rem;
    height: 1.1rem;
    stroke-width: 2.5;
    flex-shrink: 0;
    margin-right: var(--spacing-2);
    margin-top: 0.125rem;
}

.pricing-icon.emerald {
    color: #10B981;
}

.pricing-icon.blue {
    color: var(--primary);
}

.pricing-icon.grey {
    color: var(--gray-500);
}

.pricing-button {
    display: inline-block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-6);
    text-align: center;
    font-weight: 600;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-base);
    margin-top: auto;
}

.pricing-button.basic {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.pricing-button.basic:hover {
    background: rgba(79, 70, 229, 0.2);
}

.pricing-button.pro {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.pricing-button.pro:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.pricing-button.institution {
    background: var(--gray-800);
    color: white;
    box-shadow: var(--shadow-sm);
}

.pricing-button.institution:hover {
    background: var(--gray-700);
}

/* =============================================================================
   BENEFITS SECTION
   ============================================================================= */

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit-card {
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--transition-base);
}

.benefit-card:hover {
    box-shadow: var(--shadow-lg);
}

.benefit-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.benefit-title.primary {
    color: var(--primary);
}

.benefit-title.secondary {
    color: var(--secondary);
}

.benefit-title.gray {
    color: var(--gray-700);
}

.benefit-list {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--gray-600);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-3);
}

.benefit-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: var(--spacing-3);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.benefit-icon.primary {
    color: var(--primary);
}

.benefit-icon.secondary {
    color: var(--secondary);
}

.benefit-icon.gray {
    color: var(--gray-700);
}

/* =============================================================================
   TESTIMONIALS SECTION
   ============================================================================= */

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.testimonial-card {
    background: var(--gray-100);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-content {
    margin-bottom: var(--spacing-4);
}

.testimonial-text {
    color: var(--gray-700);
    font-style: italic;
    line-height: 1.6;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    overflow: hidden;
    margin-right: var(--spacing-3);
    background: var(--gray-300);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-name {
    font-weight: 600;
    color: var(--gray-600);
}

.author-title {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* =============================================================================
   CTA SECTION
   ============================================================================= */

.cta-content {
    max-width: 48rem;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
    .cta-title {
        font-size: var(--font-size-4xl);
    }
}

.cta-subtitle {
    max-width: 36rem;
    margin: 0 auto var(--spacing-10);
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-4) var(--spacing-8);
    background: white;
    color: var(--primary);
    font-weight: 700;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
}

.cta-button:hover {
    background: var(--gray-100);
    transform: scale(1.05);
}

/* =============================================================================
   CONTACT SECTION
   ============================================================================= */

.contact-form-wrapper {
    max-width: 32rem;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact-form {
    width: 100%;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-6);
}

@media (min-width: 640px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    transform: translateY(-1px);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--gray-500);
}

.form-submit {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-6);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.form-submit:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.contact-alternative {
    margin-top: var(--spacing-6);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.contact-email {
    color: var(--primary);
    text-decoration: none;
}

.contact-email:hover {
    text-decoration: underline;
}

/* Form validation styles */
.form-input.error,
.form-textarea.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.field-error {
    color: #ef4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
}

/* =============================================================================
   FOOTER
   ============================================================================= */

.footer {
    background: var(--gray-800);
    color: var(--gray-300);
    padding: var(--spacing-12) 0;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-3);
}

.footer-description {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-4);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-3);
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-link {
    color: var(--gray-300);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
    display: block;
    padding: var(--spacing-1) 0;
}

.footer-link:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.social-link {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.social-link:hover {
    color: white;
}

.social-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.footer-bottom {
    margin-top: var(--spacing-8);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--gray-700);
}

.footer-copyright {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-8);
}

/* Creative Commons License Styles */
.cc-license {
    margin-top: var(--spacing-8);
    padding: var(--spacing-4);
    background: var(--gray-700);
    border-radius: var(--radius-lg);
}

.cc-license-header {
    margin-bottom: var(--spacing-4);
}

.cc-license-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-2);
}

.cc-license-icons {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    margin-bottom: var(--spacing-2);
}

.cc-icon {
    height: 2rem;
}

.cc-license-name {
    margin-left: var(--spacing-2);
    font-weight: 600;
    color: white;
}

.cc-license-description {
    font-size: var(--font-size-base);
    color: var(--gray-300);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
}

.cc-license-text {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-3);
    line-height: 1.6;
}

.cc-license-attribution {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.cc-link {
    color: var(--primary-light);
    text-decoration: none;
}

.cc-link:hover {
    text-decoration: underline;
}

.cc-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.cc-detail {
    display: flex;
    align-items: flex-start;
    font-size: var(--font-size-sm);
    color: var(--gray-400);
}

.cc-detail-icon {
    height: 1rem;
    margin-right: var(--spacing-2);
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.cc-detail-text {
    color: var(--gray-300);
}

.cc-detail-definition {
    display: block;
    margin-left: 1.25rem;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

/* =============================================================================
   NOTIFICATIONS
   ============================================================================= */

.notification {
    position: fixed;
    top: var(--spacing-4);
    right: var(--spacing-4);
    max-width: 400px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-tooltip);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

.notification.hide {
    transform: translateX(100%);
}

.notification-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

.notification-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--gray-400);
    cursor: pointer;
    margin-left: var(--spacing-2);
}

.notification-close:hover {
    color: var(--gray-600);
}

.notification-success {
    border-left: 4px solid var(--secondary);
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-info {
    border-left: 4px solid var(--primary);
}

/* =============================================================================
   UTILITY CLASSES
   ============================================================================= */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none;
}

.floating {
    animation: floating 3s ease-in-out infinite;
}

.list-disc li::marker,
.list-decimal li::marker {
    color: var(--primary);
}

/* =============================================================================
   SCROLL BEHAVIOR & ANIMATIONS
   ============================================================================= */

.animate-on-scroll {
    opacity: 0;
    transition: all 0.7s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: none;
}

.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* =============================================================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================================================= */

a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 6px;
}

/* =============================================================================
   RESPONSIVE UTILITIES
   ============================================================================= */

@media (max-width: 1023px) {
    .lg\:hidden {
        display: none;
    }
}

@media (min-width: 1024px) {
    .lg\:flex {
        display: flex;
    }
    
    .lg\:ml-6 {
        margin-left: var(--spacing-6);
    }
    
    .lg\:space-x-4 > * + * {
        margin-left: var(--spacing-4);
    }
}

/* =============================================================================
   REDUCED MOTION SUPPORT
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .parallax-element {
        transform: none !important;
    }
    
    .floating {
        animation: none !important;
    }
}

/* =============================================================================
   HIGH CONTRAST MODE SUPPORT
   ============================================================================= */

@media (prefers-contrast: high) {
    :root {
        --gray-600: #333333;
        --gray-700: #222222;
        --gray-800: #111111;
    }
}

/* =============================================================================
   PRINT STYLES
   ============================================================================= */

@media print {
    .scroll-progress-bar,
    header,
    .hero-animation,
    .background-elements,
    .social-links,
    .cta-button,
    .form-submit {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .section-padding {
        padding: 1rem 0;
    }
}

/* =============================================================================
   KEYFRAME ANIMATIONS
   ============================================================================= */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes marquee {
    from { transform: translateX(0%); }
    to { transform: translateX(-50%); }
}

@keyframes floating {
    0% { transform: translate(0, 0px); }
    50% { transform: translate(0, 15px); }
    100% { transform: translate(0, 0px); }
}

@keyframes textGradientFlow {
    to { background-position: 200% center; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}