/* ==========================================================================
   CineMatch Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Dark Theme (Cinema aesthetic) */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #14141f;
    --color-bg-tertiary: #1e1e2d;
    --color-bg-elevated: #252538;
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-tertiary: #6b6b7d;
    --color-text-inverse: #0a0a0f;
    
    /* Brand Colors */
    --color-primary: #e94560;
    --color-primary-hover: #ff5a75;
    --color-primary-muted: rgba(233, 69, 96, 0.15);
    
    --color-secondary: #7b68ee;
    --color-secondary-hover: #9083f5;
    
    --color-accent: #ffd93d;
    --color-accent-muted: rgba(255, 217, 61, 0.15);
    
    /* Semantic Colors */
    --color-success: #4ade80;
    --color-success-muted: rgba(74, 222, 128, 0.15);
    --color-warning: #fbbf24;
    --color-error: #f87171;
    
    /* Borders */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.8125rem;   /* 13px */
    --font-size-base: 0.875rem;  /* 14px */
    --font-size-md: 1rem;        /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    
    /* Spacing */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    
    /* Border Radius */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;
    
    /* 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(233, 69, 96, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-modal: 200;
    --z-toast: 300;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-4);
}

/* --------------------------------------------------------------------------
   App Container & Phone Frame
   -------------------------------------------------------------------------- */
.app-container {
    width: 100%;
    max-width: 400px;
}

.phone-frame {
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
    max-height: 850px;
    display: flex;
    flex-direction: column;
}

/* Status Bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-primary);
}

.status-bar .time {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
}

.status-icons {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.status-icons svg {
    width: 16px;
    height: 16px;
}

.battery {
    width: 24px;
    height: 11px;
    border: 1px solid var(--color-text-primary);
    border-radius: 3px;
    padding: 1px;
    position: relative;
}

.battery::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 5px;
    background: var(--color-text-primary);
    border-radius: 0 1px 1px 0;
}

.battery-level {
    width: 100%;
    height: 100%;
    background: var(--color-success);
    border-radius: 1px;
}

/* --------------------------------------------------------------------------
   App Header
   -------------------------------------------------------------------------- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: var(--font-size-2xl);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.icon-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: background var(--transition-fast);
    position: relative;
}

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

.icon-btn svg {
    width: 24px;
    height: 24px;
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--color-primary);
    color: white;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    min-width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-small {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-primary);
}

/* --------------------------------------------------------------------------
   View Tabs
   -------------------------------------------------------------------------- */
.view-tabs {
    display: none; /* Using bottom nav instead */
}

/* --------------------------------------------------------------------------
   Main Content
   -------------------------------------------------------------------------- */
.app-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-bottom: calc(70px + var(--space-4));
}

.view {
    display: none;
    padding: var(--space-4);
}

.view.active {
    display: block;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.section-header h2 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
}

.section-header h3 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

.text-btn {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   Featured Section
   -------------------------------------------------------------------------- */
.featured-section {
    margin-bottom: var(--space-6);
}

.featured-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.featured-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.featured-image {
    position: relative;
    height: 180px;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-3);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.session-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: var(--color-primary-muted);
    color: var(--color-primary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.session-badge svg {
    width: 14px;
    height: 14px;
}

.featured-info {
    padding: var(--space-4);
}

.featured-info h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.movie-meta {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-3);
}

.session-preview {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Avatar Stack */
.avatars-stack {
    display: flex;
    align-items: center;
}

.avatars-stack img {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-secondary);
    margin-left: -8px;
}

.avatars-stack img:first-child {
    margin-left: 0;
}

.avatars-stack.small img {
    width: 24px;
    height: 24px;
}

.avatar-more {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-bg-secondary);
    margin-left: -8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Matches Section (Horizontal Scroll)
   -------------------------------------------------------------------------- */
.matches-section {
    margin-bottom: var(--space-6);
}

.matches-scroll {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.matches-scroll::-webkit-scrollbar {
    display: none;
}

.match-card {
    flex-shrink: 0;
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.match-card:hover {
    transform: scale(1.05);
}

.match-avatar {
    position: relative;
    margin-bottom: var(--space-2);
}

.match-avatar img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-tertiary);
}

.compatibility-badge {
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-success);
    color: var(--color-text-inverse);
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.match-name {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    margin-bottom: 2px;
}

.match-genre {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

/* --------------------------------------------------------------------------
   Sessions Section
   -------------------------------------------------------------------------- */
.sessions-section {
    margin-bottom: var(--space-6);
}

.session-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.session-card {
    display: flex;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.session-card:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(4px);
}

.session-poster {
    position: relative;
    flex-shrink: 0;
}

.session-poster img {
    width: 80px;
    height: 120px;
    object-fit: cover;
}

.virtual-badge {
    position: absolute;
    top: var(--space-2);
    left: var(--space-2);
    background: var(--color-secondary);
    color: white;
    font-size: 9px;
    font-weight: var(--font-weight-bold);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.session-details {
    flex: 1;
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
}

.session-details h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.session-time,
.session-location {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-1);
}

.session-time svg,
.session-location svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.session-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: var(--space-2);
}

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

.session-host img {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
}

.session-host span {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.spots-left {
    font-size: var(--font-size-xs);
    color: var(--color-accent);
    font-weight: var(--font-weight-medium);
}

/* --------------------------------------------------------------------------
   Sessions View (Your Sessions)
   -------------------------------------------------------------------------- */
.session-tabs {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
    background: var(--color-bg-secondary);
    padding: var(--space-1);
    border-radius: var(--radius-md);
}

.session-tab {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.session-tab:hover {
    color: var(--color-text-primary);
}

.session-tab.active {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.your-session-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-3);
}

.session-status-bar {
    height: 4px;
}

.your-session-card.confirmed .session-status-bar {
    background: var(--color-success);
}

.your-session-card.pending .session-status-bar {
    background: var(--color-warning);
}

.session-content {
    display: flex;
    padding: var(--space-3);
    gap: var(--space-3);
}

.session-content img {
    width: 60px;
    height: 90px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.session-info {
    flex: 1;
}

.session-status-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-1);
}

.confirmed .session-status-label {
    color: var(--color-success);
}

.pending .session-status-label {
    color: var(--color-warning);
}

.session-info h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.session-info p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

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

.session-attendees span {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.session-actions {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-3);
    padding-top: 0;
}

/* --------------------------------------------------------------------------
   Matches View (Full List)
   -------------------------------------------------------------------------- */
.match-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.match-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    background: var(--color-bg-secondary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
}

.match-avatar-large {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.match-info {
    flex: 1;
    min-width: 0;
}

.match-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-1);
}

.match-header h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
}

.compatibility-pill {
    background: var(--color-success-muted);
    color: var(--color-success);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.match-bio {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.match-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-bottom: var(--space-2);
}

.tag {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.match-common {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

/* --------------------------------------------------------------------------
   Clubs View
   -------------------------------------------------------------------------- */
.clubs-section h3 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--space-4) 0 var(--space-3);
}

.club-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-3);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.club-card:hover {
    transform: translateY(-2px);
}

.club-card.member {
    border: 1px solid var(--color-primary-muted);
}

.club-banner {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.club-emoji {
    font-size: 2.5rem;
}

.club-info {
    padding: var(--space-4);
}

.club-info h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.club-info p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.club-stats {
    display: flex;
    gap: var(--space-4);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.club-card > .btn {
    margin: 0 var(--space-4) var(--space-4);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

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

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

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

.btn-secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-hover);
}

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

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

.btn svg {
    width: 16px;
    height: 16px;
}

/* --------------------------------------------------------------------------
   Bottom Navigation
   -------------------------------------------------------------------------- */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 400px;
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    padding: var(--space-2) 0;
    padding-bottom: max(var(--space-2), env(safe-area-inset-bottom));
    z-index: 50;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    cursor: pointer;
    padding: var(--space-2);
    transition: color var(--transition-fast);
}

.nav-item svg {
    width: 24px;
    height: 24px;
}

.nav-item span {
    font-size: 10px;
    font-weight: var(--font-weight-medium);
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-item:hover:not(.active) {
    color: var(--color-text-secondary);
}

.nav-item.create-btn {
    padding: 0;
}

.create-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    transition: transform var(--transition-fast);
}

.create-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.nav-item.create-btn:hover .create-icon {
    transform: scale(1.1);
}

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-secondary);
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    overflow: hidden;
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.close-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--space-1);
}

.close-btn svg {
    width: 24px;
    height: 24px;
}

.modal-body {
    padding: var(--space-4);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.modal-footer .btn {
    flex: 1;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--space-4);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.input-field {
    width: 100%;
    padding: var(--space-3);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.input-field:focus {
    outline: none;
    border-color: var(--color-primary);
}

.search-input {
    position: relative;
}

.search-input svg {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-tertiary);
}

.search-input input {
    width: 100%;
    padding: var(--space-3);
    padding-left: calc(var(--space-3) + 28px);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
}

.search-input input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.radio-group {
    display: flex;
    gap: var(--space-3);
}

.radio-option {
    flex: 1;
    cursor: pointer;
}

.radio-option input {
    display: none;
}

.radio-label {
    display: block;
    padding: var(--space-3);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.radio-option.selected .radio-label,
.radio-option input:checked + .radio-label {
    background: var(--color-primary-muted);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.select-dropdown {
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   Loading State (Empty State Example)
   -------------------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: var(--space-10) var(--space-4);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--color-bg-elevated) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

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

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

/* Focus States */
.btn:focus-visible,
.nav-item:focus-visible,
.icon-btn:focus-visible,
.input-field:focus-visible,
.search-input input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Responsive Adjustments
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
    .phone-frame {
        max-height: 900px;
    }
}