/* ===========================================
   Vibe In Pocket - Main Stylesheet
   A fancy, modern forum with glassmorphism
   =========================================== */

/* ============ CSS Variables ============ */
:root {
    /* Color Palette - Cosmic Night Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-elevated: #22222f;
    
    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: rgba(0, 0, 0, 0.4);
    
    /* Accent Colors - Electric Violet & Cyan */
    --accent-primary: #8b5cf6;
    --accent-primary-rgb: 139, 92, 246;
    --accent-secondary: #06b6d4;
    --accent-secondary-rgb: 6, 182, 212;
    --accent-tertiary: #f472b6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --text-muted: #475569;
    
    /* Gradient Definitions */
    --gradient-primary: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    --gradient-accent: linear-gradient(135deg, var(--accent-tertiary), var(--accent-primary));
    --gradient-glow: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.15), transparent 70%);
    
    /* Typography */
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(var(--accent-primary-rgb), 0.3);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    
    /* Layout */
    --navbar-height: 72px;
    --sidebar-width: 260px;
    --content-max-width: 1400px;
}

/* Light Theme Override */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --bg-elevated: #ffffff;
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Light Theme - Navbar Overrides */
html[data-theme="light"] .navbar {
    background: #ffffff !important;
    border-bottom: 1px solid #e2e8f0 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

html[data-theme="light"] .nav-logo {
    color: #0f172a !important;
}

html[data-theme="light"] .logo-text {
    color: #1e293b !important;
}

html[data-theme="light"] .nav-btn-ghost {
    color: #334155 !important;
}

html[data-theme="light"] .nav-btn-ghost:hover {
    color: #0f172a !important;
    background: #f1f5f9 !important;
}

html[data-theme="light"] .theme-icon {
    color: #334155 !important;
    font-size: 1.3rem !important;
}

html[data-theme="light"] .nav-btn-icon {
    color: #334155 !important;
}

html[data-theme="light"] .nav-btn-icon:hover {
    color: #0f172a !important;
    background: #f1f5f9 !important;
}

html[data-theme="light"] .nav-search input {
    background: #f1f5f9 !important;
    color: #0f172a !important;
    border: 1px solid #e2e8f0 !important;
}

html[data-theme="light"] .nav-search input::placeholder {
    color: #64748b !important;
}

html[data-theme="light"] .nav-search .search-icon {
    color: #64748b !important;
}

html[data-theme="light"] .search-shortcut {
    background: #e2e8f0 !important;
    border-color: #cbd5e1 !important;
    color: #475569 !important;
}

html[data-theme="light"] .nav-btn-outline {
    color: #0f172a !important;
    border-color: #cbd5e1 !important;
}

html[data-theme="light"] .nav-btn-outline:hover {
    background: #f1f5f9 !important;
    border-color: var(--accent-primary) !important;
}

/* ============ Reset & Base ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--accent-secondary);
}

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

input, textarea, select {
    font-family: inherit;
    font-size: 1rem;
}

img {
    max-width: 100%;
    height: auto;
}

/* ============ Animated Background ============ */
.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.bg-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(var(--accent-primary-rgb), 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(var(--accent-secondary-rgb), 0.1), transparent),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(139, 92, 246, 0.1), transparent);
}

.bg-orbs {
    position: absolute;
    inset: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-primary), transparent 70%);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-secondary), transparent 70%);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-tertiary), transparent 70%);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

.orb-4 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-primary), transparent 70%);
    bottom: -150px;
    right: 20%;
    animation-delay: -15s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

/* ============ Glass Card Effect ============ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-xl);
}

/* ============ Navbar ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 1.75rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(var(--accent-primary-rgb), 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(var(--accent-primary-rgb), 0.8));
    }
}

.logo-text {
    letter-spacing: -0.02em;
}

.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation Search */
.nav-search {
    flex: 1;
    max-width: 560px;
    min-width: 200px;
    margin: 0 var(--spacing-xl);
    position: relative;
}

.nav-search .search-icon {
    position: absolute;
    left: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.4rem;
    font-weight: 600;
    pointer-events: none;
}

.nav-search input {
    width: 100%;
    padding: 0.75rem 3rem 0.75rem 3.5rem;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.nav-search input::placeholder {
    color: var(--text-tertiary);
}

.nav-search input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.15);
}

.search-shortcut {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    padding: 0.2rem 0.5rem;
    background: var(--bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    text-decoration: none;
}

.nav-btn-ghost {
    color: var(--text-secondary);
    padding: 0.6rem;
}

.nav-btn-ghost .theme-icon {
    font-size: 1.3rem;
}

.nav-btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-btn-icon {
    position: relative;
    padding: 0.6rem;
    color: var(--text-secondary);
}

.nav-btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--accent-danger);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn-outline {
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    background: transparent;
}

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

.nav-btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.nav-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

/* User Menu Section */
.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid transparent;
    background: var(--gradient-primary);
    padding: 2px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.user-avatar:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 220px;
    background: var(--bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.95);
    transition: all var(--transition-base);
}

.user-dropdown:not(.hidden) {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-header {
    padding: var(--spacing-sm) var(--spacing-md);
}

.dropdown-username {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.dropdown-email {
    display: block;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.dropdown-divider {
    height: 1px;
    background: var(--glass-border);
    margin: var(--spacing-sm) 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: left;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-item-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
}

/* ============ Main Content Layout ============ */
.main-content {
    padding-top: calc(var(--navbar-height) + var(--spacing-xl));
    min-height: 100vh;
}

.content-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr var(--sidebar-width);
    gap: var(--spacing-xl);
}

/* ============ Sidebars ============ */
.sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + var(--spacing-xl));
    height: fit-content;
    max-height: calc(100vh - var(--navbar-height) - var(--spacing-2xl));
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.sidebar-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: rgba(var(--accent-primary-rgb), 0.15);
    color: var(--accent-primary);
}

.sidebar-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.sidebar-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.sidebar-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.community-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-sm);
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.guidelines-list {
    list-style: none;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.guidelines-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.guidelines-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.trending-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.trending-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.trending-item:hover {
    background: var(--bg-tertiary);
}

.trending-rank {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-tertiary);
    width: 24px;
}

.trending-topic {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.trending-count {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.sidebar-footer {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

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

.footer-copyright {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============ Feed ============ */
.feed {
    min-width: 0;
}

.feed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding: 0 var(--spacing-xs);
}

.feed-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.sort-options {
    display: flex;
    gap: var(--spacing-xs);
}

.sort-btn {
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.sort-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sort-btn.active {
    background: rgba(var(--accent-primary-rgb), 0.15);
    color: var(--accent-primary);
}

/* Create Post Card */
.create-post-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.create-post-prompt {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.create-post-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
}

.create-post-input {
    flex: 1;
    padding: 0.75rem var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-base);
}

.create-post-input:hover {
    background: var(--bg-secondary);
    border-color: var(--glass-border);
}

.create-post-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.create-action-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.create-action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Posts Container */
.posts-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Loading Skeleton */
.loading-skeleton {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skeleton-card {
    height: 180px;
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    border-radius: var(--radius-lg);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Load More Button */
.load-more-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    margin-top: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-base);
}

.load-more-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.load-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: var(--spacing-sm);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

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

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-full {
    width: 100%;
}

.btn-loader {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============ Modal ============ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
    animation: modal-enter 0.3s ease-out;
}

.modal-sm {
    max-width: 480px;
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.15);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

.char-count {
    position: absolute;
    right: var(--spacing-md);
    bottom: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* Tag Input */
.tag-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.tag-input-container:focus-within {
    border-color: var(--accent-primary);
    background: var(--bg-secondary);
}

.tag-input-container input {
    flex: 1;
    min-width: 120px;
    padding: 0.375rem var(--spacing-sm);
    background: transparent;
    border: none;
}

.tag-input-container input:focus {
    outline: none;
    box-shadow: none;
}

.tags-list {
    display: contents;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.375rem 0.75rem;
    background: rgba(var(--accent-primary-rgb), 0.15);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

.tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    font-size: 0.75rem;
    color: var(--accent-primary);
    transition: all var(--transition-fast);
}

.tag-remove:hover {
    background: var(--accent-primary);
    color: white;
}

/* ============ Toast Notifications ============ */
.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: toast-enter 0.3s ease-out;
}

@keyframes toast-enter {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-message {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.toast-close {
    padding: var(--spacing-xs);
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

.toast-success {
    border-color: var(--accent-success);
}

.toast-success .toast-icon {
    color: var(--accent-success);
}

.toast-error {
    border-color: var(--accent-danger);
}

.toast-error .toast-icon {
    color: var(--accent-danger);
}

/* ============ Utility Classes ============ */
.hidden {
    display: none !important;
}

.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;
}

/* ============ Responsive Design ============ */
@media (max-width: 1200px) {
    .content-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .sidebar-left {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 64px;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .nav-search {
        display: none;
    }
    
    .logo-text {
        display: none;
    }
    
    .main-content {
        padding-top: calc(var(--navbar-height) + var(--spacing-md));
    }
    
    .content-container {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .create-post-prompt {
        flex-wrap: wrap;
    }
    
    .create-post-input {
        flex: 1 1 100%;
        order: 1;
        margin-top: var(--spacing-sm);
    }
    
    .create-post-actions {
        order: 2;
        width: 100%;
        justify-content: flex-end;
        margin-top: var(--spacing-sm);
    }
}