/*
Theme Name: STL Robotaxi
Theme URI: https://stlrobotaxi.com
Author: STL Robotaxi
Author URI: https://stlrobotaxi.com
Description: A futuristic, St. Louis-proud theme for autonomous vehicle news and community building. Features dark mode default, magazine-style layouts, and Mailgun email integration.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: stl-robotaxi
Tags: dark-mode, news, magazine, autonomous-vehicles, tech, custom-logo

STL Robotaxi WordPress Theme
Copyright 2025 STL Robotaxi
*/

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors - Dark Mode (Default) */
    --color-bg-primary: #0F1729;
    --color-bg-secondary: #1A2332;
    --color-bg-tertiary: #232D3F;
    --color-text-primary: #F5F5F5;
    --color-text-secondary: #B0B8C4;
    --color-text-muted: #6B7280;
    --color-accent-primary: #00D4FF;
    --color-accent-secondary: #71797E;
    --color-accent-stl: #C41E3A;
    --color-border: #2D3748;
    --color-success: #10B981;
    --color-error: #EF4444;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', 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-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --max-width-content: 1200px;
    --max-width-narrow: 800px;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* Light Mode */
[data-theme="light"] {
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F8FAFC;
    --color-bg-tertiary: #F1F5F9;
    --color-text-primary: #0F1729;
    --color-text-secondary: #475569;
    --color-text-muted: #94A3B8;
    --color-border: #E2E8F0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.2);
}

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

*,
*::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-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

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

strong {
    font-weight: 600;
}

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

.site-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container--narrow {
    max-width: var(--max-width-narrow);
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section--alt {
    background-color: var(--color-bg-secondary);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(15, 23, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-base);
}

[data-theme="light"] .site-header {
    background-color: rgba(255, 255, 255, 0.95);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-logo svg {
    height: 45px;
    width: auto;
}

.site-logo-text {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.site-logo-text span {
    color: var(--color-accent-primary);
}

/* Desktop Navigation */
.main-nav {
    display: none;
}

@media (min-width: 768px) {
    .main-nav {
        display: flex;
        align-items: center;
        gap: var(--spacing-xl);
    }
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-primary);
    transition: width var(--transition-base);
}

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

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

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--color-accent-primary);
}

.theme-toggle svg {
    width: 22px;
    height: 22px;
}

.theme-toggle .icon-sun {
    display: none;
}

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

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(70px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-background svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(15, 23, 41, 0.7) 0%,
        rgba(15, 23, 41, 0.85) 50%,
        rgba(15, 23, 41, 0.95) 100%
    );
}

[data-theme="light"] .hero-overlay {
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.7) 0%,
        rgba(255, 255, 255, 0.85) 50%,
        rgba(255, 255, 255, 0.95) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-xl);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-title .highlight {
    color: var(--color-accent-primary);
    position: relative;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Email Signup Form */
.signup-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
}

@media (min-width: 480px) {
    .signup-form {
        flex-direction: row;
    }
}

.signup-form input[type="email"] {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-body);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.signup-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
}

.signup-form input[type="email"]::placeholder {
    color: var(--color-text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent-primary), #00A3CC);
    color: var(--color-bg-primary);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn--secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

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

.signup-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Form Messages */
.form-message {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.form-message.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

/* ==========================================================================
   Latest Posts Section
   ========================================================================== */

.latest-posts {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: 0;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-accent-primary);
    margin-top: var(--spacing-sm);
}

.view-all-link {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.view-all-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.view-all-link:hover svg {
    transform: translateX(4px);
}

/* Post Grid - Magazine Style */
.posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

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

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

    .posts-grid--featured .post-card:first-child {
        grid-column: span 2;
        grid-row: span 2;
    }

    .posts-grid--featured .post-card:first-child .post-card-image {
        height: 100%;
        min-height: 400px;
    }

    .posts-grid--featured .post-card:first-child .post-card-title {
        font-size: var(--font-size-3xl);
    }
}

/* Post Card */
.post-card {
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
}

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

.post-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background-color: var(--color-bg-tertiary);
}

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

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

.post-card-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-card-category--tesla {
    background-color: #E31937;
}

.post-card-category--waymo {
    background-color: #4285F4;
}

.post-card-category--regulation {
    background-color: #9333EA;
}

.post-card-category--opinion {
    background-color: var(--color-accent-stl);
}

.post-card-category--local {
    background-color: var(--color-accent-secondary);
}

.post-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.post-card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.post-card-title a {
    color: var(--color-text-primary);
}

.post-card-title a:hover {
    color: var(--color-accent-primary);
}

.post-card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.post-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.read-more {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.read-more svg {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-fast);
}

.read-more:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Single Post (Wide Content)
   ========================================================================== */

.single-post {
    padding-top: calc(70px + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

.post-header {
    text-align: center;
    max-width: var(--max-width-narrow);
    margin: 0 auto var(--spacing-2xl);
}

.post-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.post-category {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    margin-bottom: var(--spacing-lg);
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.post-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.post-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-2xl);
}

.post-content {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.post-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-secondary);
}

.post-content h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.post-content h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.post-content ul,
.post-content ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.post-content li {
    margin-bottom: var(--spacing-sm);
}

.post-content blockquote {
    border-left: 4px solid var(--color-accent-primary);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--color-text-muted);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    margin: var(--spacing-xl) 0;
}

.post-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Share Buttons */
.post-share {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.post-share-label {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

.share-btn svg {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   Archive Page (Magazine Grid)
   ========================================================================== */

.archive-header {
    padding-top: calc(70px + var(--spacing-3xl));
    padding-bottom: var(--spacing-2xl);
    text-align: center;
    background-color: var(--color-bg-secondary);
}

.archive-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.archive-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-text-secondary);
}

.archive-content {
    padding: var(--spacing-3xl) 0;
}

/* Category Filters */
.category-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
}

.category-filter {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-filter:hover,
.category-filter.active {
    background-color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-3xl);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.pagination .current {
    background-color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

/* ==========================================================================
   Page Templates
   ========================================================================== */

.page-template {
    padding-top: calc(70px + var(--spacing-3xl));
    padding-bottom: var(--spacing-4xl);
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.page-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

.page-content p {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

/* Why STL Cards */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

@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-color: var(--color-bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-primary), #00A3CC);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-bg-primary);
}

.feature-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Resources List */
.resources-list {
    list-style: none;
}

.resource-item {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.resource-item:hover {
    border-color: var(--color-accent-primary);
}

.resource-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.resource-title a {
    color: var(--color-text-primary);
}

.resource-title a:hover {
    color: var(--color-accent-primary);
}

.resource-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

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

.site-footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-bottom: 70px; /* Space for mobile nav */
}

@media (min-width: 768px) {
    .site-footer {
        margin-bottom: 0;
    }
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

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

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo svg {
    height: 35px;
    width: auto;
}

.footer-brand p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-nav h4,
.footer-signup h4 {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.footer-nav ul {
    list-style: none;
}

.footer-nav li {
    margin-bottom: var(--spacing-sm);
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.footer-nav a:hover {
    color: var(--color-accent-primary);
}

.footer-signup .signup-form {
    flex-direction: column;
    margin-bottom: 0;
}

.footer-bottom {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-legal a:hover {
    color: var(--color-accent-primary);
}

/* ==========================================================================
   Mobile Bottom Navigation
   ========================================================================== */

.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    display: flex;
}

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

.mobile-nav-list {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    list-style: none;
}

.mobile-nav-item {
    flex: 1;
}

.mobile-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    font-family: var(--font-heading);
    transition: color var(--transition-fast);
}

.mobile-nav-link svg {
    width: 22px;
    height: 22px;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--color-accent-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;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-accent { color: var(--color-accent-primary); }
.text-muted { color: var(--color-text-muted); }
.text-stl { color: var(--color-accent-stl); }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-md { margin-top: var(--spacing-md); }
.mb-md { margin-bottom: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }

@media (max-width: 767px) {
    .hidden-mobile { display: none; }
}

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

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(15, 23, 41, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-up {
    animation: slideUp 0.5s ease forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}