/* ============================================
   Study Junkie Landing Page
   Terminal × Laboratory Aesthetic
   ============================================ */

/* CSS Variables */
:root {
    /* Primary Colors - Phosphor Green */
    --color-primary-50: #e8fff0;
    --color-primary-100: #c5ffdb;
    --color-primary-200: #8bffb8;
    --color-primary-300: #4dff8f;
    --color-primary-400: #22f06e;
    --color-primary-500: #00d954;
    --color-primary-600: #00b847;
    --color-primary-700: #00913a;
    --color-primary-800: #007030;
    --color-primary-900: #004d21;
    
    /* Secondary - Amber */
    --color-secondary-400: #ffbf00;
    --color-secondary-500: #e6ac00;
    --color-secondary-600: #cc9900;
    
    /* Semantic Colors */
    --color-success: #00d954;
    --color-warning: #ffbf00;
    --color-error: #ff3b3b;
    --color-info: #00d4ff;
    
    /* Dark Theme Backgrounds */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --bg-surface: #0f0f0f;
    
    /* Text */
    --text-primary: #e8e8e8;
    --text-secondary: #9e9e9e;
    --text-tertiary: #666666;
    --text-inverse: #0a0a0a;
    
    /* Borders */
    --border-light: #2a2a2a;
    --border-medium: #3a3a3a;
    --border-glow: rgba(0, 217, 84, 0.3);
    
    /* Glow Effects */
    --glow-green: rgba(0, 217, 84, 0.15);
    --glow-green-strong: rgba(0, 217, 84, 0.3);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px var(--glow-green);
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', monospace;
    --font-display: 'Space Mono', 'JetBrains Mono', monospace;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius - Minimal */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Container */
    --container-max: 1200px;
    --navbar-height: 64px;
    
    /* Grid background opacity */
    --grid-bg-opacity: 0.02;
}

/* Light Theme */
[data-theme="light"] {
    /* Primary stays green but darker for contrast */
    --color-primary-500: #00913a;
    --color-primary-400: #00b847;
    --color-primary-600: #007030;
    
    /* Semantic Colors - adjusted for light backgrounds */
    --color-success: #00913a;
    --color-warning: #cc9900;
    --color-error: #cc2f2f;
    --color-info: #0088a8;
    
    /* Light Theme Backgrounds */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f1f3;
    --bg-surface: #ffffff;
    
    /* Text */
    --text-primary: #1a1a1a;
    --text-secondary: #5c5c5c;
    --text-tertiary: #9e9e9e;
    --text-inverse: #ffffff;
    
    /* Borders */
    --border-light: #e0e0e0;
    --border-medium: #c2c2c2;
    --border-glow: rgba(0, 145, 58, 0.3);
    
    /* Glow Effects - subtler for light mode */
    --glow-green: rgba(0, 145, 58, 0.1);
    --glow-green-strong: rgba(0, 145, 58, 0.2);
    
    /* Shadows - lighter */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 30px var(--glow-green);
    
    /* Grid background opacity - more subtle in light mode */
    --grid-bg-opacity: 0.04;
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-mono);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
    
    /* Grid background */
    background-image: 
        linear-gradient(rgba(0, 145, 58, var(--grid-bg-opacity)) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 145, 58, var(--grid-bg-opacity)) 1px, transparent 1px);
    background-size: 32px 32px;
    background-attachment: fixed;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--color-primary-500);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-400);
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary-500);
    color: var(--text-inverse);
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.text-gradient {
    color: var(--color-primary-500);
    text-shadow: 0 0 20px var(--glow-green);
}

.text-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
}

/* ============================================
   Layout
   ============================================ */

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .section-container {
        padding: 0 var(--space-8);
    }
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-12);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-primary-500);
    margin-bottom: var(--space-4);
}

.section-label::before {
    content: '>';
    font-weight: 700;
}

.section-title {
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: transparent;
    color: var(--color-primary-500);
    border: 1px solid var(--color-primary-500);
}

.btn-primary:hover {
    background: var(--color-primary-500);
    color: var(--text-inverse);
    box-shadow: var(--shadow-glow);
}

.btn-primary-filled {
    background: var(--color-primary-500);
    color: var(--text-inverse);
    border: 1px solid var(--color-primary-500);
    box-shadow: 0 0 15px var(--glow-green);
}

.btn-primary-filled:hover {
    background: var(--color-primary-400);
    border-color: var(--color-primary-400);
    box-shadow: 0 0 30px var(--glow-green-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
}

.btn-xl {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: 0.75rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 1.25em;
    height: 1.25em;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.navbar-container {
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .navbar-container {
        padding: 0 var(--space-8);
    }
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-500);
    text-shadow: 0 0 20px var(--glow-green);
}

.navbar-links {
    display: none;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .navbar-links {
        display: flex;
    }
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-2) var(--space-3);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary-500);
    border-color: var(--border-light);
}

.navbar-actions {
    display: none;
    gap: var(--space-3);
}

@media (min-width: 768px) {
    .navbar-actions {
        display: flex;
        align-items: center;
    }
}

/* Theme Toggle Button */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle-btn:hover {
    color: var(--color-primary-400);
    border-color: var(--color-primary-400);
    box-shadow: 0 0 10px var(--glow-green);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
}

/* Show sun icon in dark mode, moon in light mode */
.theme-toggle-btn .icon-moon {
    display: none;
}

.theme-toggle-btn .icon-sun {
    display: block;
}

[data-theme="light"] .theme-toggle-btn .icon-moon {
    display: block;
}

[data-theme="light"] .theme-toggle-btn .icon-sun {
    display: none;
}

/* Mobile Theme Toggle */
.theme-toggle-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4);
    margin-top: var(--space-2);
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.theme-toggle-mobile:hover {
    border-color: var(--color-primary-400);
    background: var(--glow-green);
}

.theme-toggle-mobile .theme-label {
    color: var(--text-secondary);
}

.theme-toggle-mobile .theme-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle-mobile svg {
    width: 20px;
    height: 20px;
}

.theme-toggle-mobile .icon-moon {
    display: none;
}

.theme-toggle-mobile .icon-sun {
    display: block;
}

[data-theme="light"] .theme-toggle-mobile .icon-moon {
    display: block;
}

[data-theme="light"] .theme-toggle-mobile .icon-sun {
    display: none;
}

/* Mobile Nav Actions */
.mobile-nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

@media (min-width: 768px) {
    .mobile-nav-actions {
        display: none;
    }
}

/* Mobile Theme Toggle in Navbar */
.theme-toggle-mobile-nav {
    display: flex;
}

@media (min-width: 768px) {
    .theme-toggle-mobile-nav {
        display: none;
    }
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.hamburger {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    left: 0;
    transition: transform var(--transition-fast);
}

.hamburger::before {
    transform: translateY(-6px);
}

.hamburger::after {
    transform: translateY(6px);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.mobile-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--navbar-height) + var(--space-16));
    padding-bottom: var(--space-16);
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 768px) {
    .hero-container {
        padding: 0 var(--space-8);
    }
}

@media (min-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-content {
    max-width: 600px;
}

.hero-greeting {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.hero-title {
    margin-bottom: var(--space-6);
}

.hero-title .title-main {
    display: block;
    color: var(--text-primary);
}

.hero-title .title-accent {
    display: block;
    color: var(--color-primary-500);
    text-shadow: 0 0 30px var(--glow-green);
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-mockup {
    width: 100%;
    max-width: 560px;
}

.mockup-window {
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    box-shadow: 
        0 0 0 1px var(--border-glow),
        var(--shadow-glow),
        var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.mockup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-light);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-medium);
}

.mockup-dots span:nth-child(1) { background: var(--color-error); }
.mockup-dots span:nth-child(2) { background: var(--color-warning); }
.mockup-dots span:nth-child(3) { background: var(--color-success); }

.mockup-title {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.mockup-content {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mockup-content img {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Philosophy Section
   ============================================ */

.philosophy-section {
    padding: var(--space-20) 0;
    border-top: 1px solid var(--border-light);
}

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

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

.philosophy-card {
    padding: var(--space-6);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-fast);
}

.philosophy-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary-500);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.philosophy-card:hover {
    border-color: var(--color-primary-500);
}

.philosophy-card:hover::before {
    opacity: 1;
}

.philosophy-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-500);
    opacity: 0.5;
    margin-bottom: var(--space-4);
}

.philosophy-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-3);
}

.philosophy-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* ============================================
   About Section
   ============================================ */

.about-section {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    transition: background-color var(--transition-base);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.0625rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.about-text:last-child {
    margin-bottom: 0;
}

.about-highlight {
    color: var(--text-primary);
    font-weight: 500;
}

/* ============================================
   How It Works Section
   ============================================ */

.how-section {
    padding: var(--space-20) 0;
    border-top: 1px solid var(--border-light);
}

.steps-container {
    max-width: 800px;
    margin: 0 auto var(--space-12);
}

.step-card {
    display: flex;
    gap: var(--space-6);
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary-500);
    background: transparent;
    border: 1px solid var(--color-primary-500);
    border-radius: var(--radius-sm);
}

.step-content {
    flex: 1;
    padding-bottom: var(--space-4);
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-3);
}

.step-description {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.step-visual {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.step-screenshot {
    width: 100%;
    height: auto;
    display: block;
}

.step-connector {
    display: flex;
    justify-content: center;
    padding: var(--space-4) 0;
    padding-left: 20px;
    color: var(--color-primary-500);
    opacity: 0.5;
}

.step-connector svg {
    width: 24px;
    height: 48px;
}

/* CTA Box */
.cta-box {
    text-align: center;
    padding: var(--space-10);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
}

.cta-box h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-3);
}

.cta-box p {
    margin-bottom: var(--space-6);
    font-size: 1rem;
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-section {
    padding: var(--space-20) 0;
    background: var(--bg-secondary);
    transition: background-color var(--transition-base);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-primary-500);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5);
    text-align: left;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-surface);
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-tertiary);
}

.faq-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
    transition: transform var(--transition-base);
}

.faq-item.is-open .faq-icon {
    transform: rotate(180deg);
    color: var(--color-primary-500);
}

.faq-answer {
    display: none;
    padding: 0 var(--space-5) var(--space-5);
    background: var(--bg-surface);
}

.faq-item.is-open .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ============================================
   Final CTA Section
   ============================================ */

.final-cta-section {
    padding: var(--space-20) 0;
    position: relative;
    overflow: hidden;
}

.cta-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
    text-align: center;
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .cta-container {
        padding: 0 var(--space-8);
    }
}

.cta-title {
    margin-bottom: var(--space-4);
}

.cta-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    margin-bottom: var(--space-4);
}

.cta-note {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: var(--space-12) 0 var(--space-6);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .footer-container {
        padding: 0 var(--space-8);
    }
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--border-light);
}

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

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-500);
    display: inline-block;
    margin-bottom: var(--space-2);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

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

.footer-links h4 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.footer-links a {
    display: block;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary-500);
}

.footer-bottom {
    padding-top: var(--space-6);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* ============================================
   Animations
   ============================================ */

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
    opacity: 0;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

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

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

/* ============================================
   Utilities
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

::selection {
    background: var(--glow-green-strong);
    color: var(--text-primary);
}

:focus-visible {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

/* ============================================
   Cookie Consent Banner
   ============================================ */

.cookie-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.cookie-backdrop[aria-hidden="false"] {
    opacity: 1;
    pointer-events: auto;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-light);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    padding: var(--space-5);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cookie-banner[aria-hidden="false"] {
    transform: translateY(0);
}

@media (min-width: 769px) {
    .cookie-backdrop {
        display: none;
    }
}

.cookie-banner-content {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.cookie-banner-text {
    flex: 1;
}

.cookie-banner-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-2) 0;
}

.cookie-banner-description {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.cookie-banner-link {
    color: var(--color-primary-500);
    text-decoration: underline;
    font-weight: 500;
}

.cookie-banner-link:hover {
    color: var(--color-primary-400);
}

.cookie-banner-actions {
    display: flex;
    gap: var(--space-3);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .cookie-banner {
        padding: var(--space-4);
        padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
    }
    
    .cookie-banner-content {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }
    
    .cookie-banner-actions {
        width: 100%;
        flex-direction: column;
        gap: var(--space-2);
    }
    
    .cookie-banner-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .cookie-banner-actions #cookie-accept {
        order: 1;
    }
    
    .cookie-banner-actions #cookie-decline {
        order: 2;
    }
}

/* ============================================
   Blog Styles
   ============================================ */

/* Blog Hero */
.blog-hero {
    padding-top: calc(var(--navbar-height) + var(--space-16));
    padding-bottom: var(--space-12);
}

/* Blog Listing */
.blog-listing {
    padding-bottom: var(--space-16);
}

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

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

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

.blog-empty {
    text-align: center;
    padding: var(--space-16);
    color: var(--text-secondary);
}

/* Blog Card */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.blog-card:hover {
    border-color: var(--color-primary-500);
    box-shadow: var(--shadow-glow);
}

.blog-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

.blog-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--space-5);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-separator {
    color: var(--border-medium);
}

.blog-card-title {
    font-size: 1.125rem;
    line-height: 1.4;
    margin-bottom: var(--space-3);
}

.blog-card-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-primary-500);
}

.blog-card-description {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.tag {
    display: inline-flex;
    padding: var(--space-1) var(--space-3);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary-500);
    background: var(--glow-green);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-full);
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: auto;
}

.blog-card-link svg {
    width: 1em;
    height: 1em;
    transition: transform var(--transition-fast);
}

.blog-card-link:hover svg {
    transform: translateX(4px);
}

/* Blog CTA Section */
.blog-cta-section {
    padding-bottom: var(--space-16);
}

/* ============================================
   Blog Post Styles
   ============================================ */

.blog-post {
    padding-top: calc(var(--navbar-height) + var(--space-12));
    padding-bottom: var(--space-16);
}

.blog-post-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 768px) {
    .blog-post-container {
        padding: 0 var(--space-8);
    }
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: var(--space-8);
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-tertiary);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    color: var(--border-medium);
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--color-primary-500);
}

.breadcrumb li[aria-current="page"] {
    color: var(--text-primary);
}

/* Blog Post Header */
.blog-post-header {
    margin-bottom: var(--space-8);
}

.blog-post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.reading-time {
    color: var(--color-primary-500);
}

.blog-post-title {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.blog-post-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.blog-post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

/* Blog Post Image */
.blog-post-image {
    margin-bottom: var(--space-8);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.blog-post-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Blog Post Content - Prose */
.blog-post-content.prose {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.blog-post-content.prose h2 {
    font-size: 1.5rem;
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.blog-post-content.prose h3 {
    font-size: 1.25rem;
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.blog-post-content.prose h4 {
    font-size: 1.125rem;
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.blog-post-content.prose p {
    margin-bottom: var(--space-5);
}

.blog-post-content.prose a {
    color: var(--color-primary-500);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-post-content.prose a:hover {
    color: var(--color-primary-400);
}

.blog-post-content.prose strong {
    color: var(--text-primary);
    font-weight: 600;
}

.blog-post-content.prose ul,
.blog-post-content.prose ol {
    margin-bottom: var(--space-5);
    padding-left: var(--space-6);
}

.blog-post-content.prose li {
    margin-bottom: var(--space-2);
}

.blog-post-content.prose ul li {
    list-style-type: disc;
}

.blog-post-content.prose ol li {
    list-style-type: decimal;
}

.blog-post-content.prose blockquote {
    margin: var(--space-6) 0;
    padding: var(--space-4) var(--space-6);
    border-left: 3px solid var(--color-primary-500);
    background: var(--bg-tertiary);
    font-style: italic;
    color: var(--text-primary);
}

.blog-post-content.prose code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 0.2em 0.4em;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--color-primary-500);
}

.blog-post-content.prose pre {
    margin: var(--space-6) 0;
    padding: var(--space-4);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow-x: auto;
}

.blog-post-content.prose pre code {
    padding: 0;
    background: none;
    border: none;
    color: var(--text-primary);
}

.blog-post-content.prose img {
    max-width: 100%;
    height: auto;
    margin: var(--space-6) 0;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.blog-post-content.prose hr {
    margin: var(--space-10) 0;
    border: none;
    border-top: 1px solid var(--border-light);
}

/* Blog Post Footer */
.blog-post-footer {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-light);
}

.updated-date {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-6);
}

.blog-post-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.author-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.blog-post-cta {
    text-align: center;
    padding: var(--space-8);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-8);
}

.blog-post-cta h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-3);
}

.blog-post-cta p {
    margin-bottom: var(--space-6);
    font-size: 0.9375rem;
}

.back-to-blog {
    text-align: center;
}

.btn-icon-left {
    width: 1.25em;
    height: 1.25em;
    margin-right: var(--space-2);
    transition: transform var(--transition-fast);
}

.btn:hover .btn-icon-left {
    transform: translateX(-4px);
}