/* ============================================
   SoulMate AI - Complete Stylesheet
   ============================================ */

:root {
    --primary: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --secondary: #EC4899;
    --secondary-dark: #DB2777;
    --accent: #06B6D4;
    --bg-dark: #0F0B1A;
    --bg-card: #1A1128;
    --bg-card-hover: #231738;
    --bg-surface: #150E24;
    --text-primary: #F8F5FF;
    --text-secondary: #A89EC2;
    --text-muted: #6B5F82;
    --border: #2D2247;
    --success: #10B981;
    --warning: #F59E0B;
    --gradient-primary: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    --gradient-dark: linear-gradient(135deg, #1A1128 0%, #0F0B1A 100%);
    --gradient-glow: linear-gradient(135deg, rgba(139,92,246,0.3) 0%, rgba(236,72,153,0.3) 100%);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 40px rgba(139,92,246,0.3);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    background: rgba(15, 11, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    text-decoration: none;
}

.nav-brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    color: white;
}

.nav-brand-text {
    font-size: 1.3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    background: none;
    font-family: inherit;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.1);
}

.nav-link.active {
    color: var(--primary-light);
    background: rgba(139, 92, 246, 0.15);
}

.nav-cta {
    padding: 0.5rem 1.25rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        padding: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .mobile-menu-btn {
        display: block;
    }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
}

.hero-bg-orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.hero-bg-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -50px;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.hero-bg-orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 12s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-primary {
    padding: 0.875rem 2rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-secondary {
    padding: 0.875rem 2rem;
    background: transparent;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* ============================================
   Section Styles
   ============================================ */
.section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(139, 92, 246, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--primary-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Feature Cards
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all 0.3s;
    cursor: pointer;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.feature-icon-purple { background: rgba(139, 92, 246, 0.15); }
.feature-icon-pink { background: rgba(236, 72, 153, 0.15); }
.feature-icon-cyan { background: rgba(6, 182, 212, 0.15); }
.feature-icon-green { background: rgba(16, 185, 129, 0.15); }
.feature-icon-yellow { background: rgba(245, 158, 11, 0.15); }
.feature-icon-red { background: rgba(239, 68, 68, 0.15); }

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Avatar / Character Cards
   ============================================ */
.avatars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
}

.avatar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.avatar-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary);
}

.avatar-image {
    width: 100%;
    height: 320px;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    position: relative;
    overflow: hidden;
}

.avatar-image-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(transparent, var(--bg-card));
}

.avatar-online {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    background: rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--success);
    font-weight: 600;
}

.avatar-online-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.avatar-info {
    padding: 1.25rem;
}

.avatar-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.avatar-role {
    font-size: 0.8rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.avatar-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.avatar-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.avatar-tag {
    padding: 0.2rem 0.6rem;
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.avatar-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.avatar-rating {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
    color: var(--warning);
}

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

/* ============================================
   Category Filter
   ============================================ */
.category-filter {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.category-btn {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

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

.category-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

/* ============================================
   Chat Interface
   ============================================ */
.chat-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: calc(100vh - 73px);
    margin-top: 73px;
}

@media (max-width: 768px) {
    .chat-container {
        grid-template-columns: 1fr;
    }
    .chat-sidebar {
        display: none;
    }
    .chat-sidebar.open {
        display: block;
        position: fixed;
        top: 73px;
        left: 0;
        bottom: 0;
        width: 320px;
        z-index: 100;
    }
}

.chat-sidebar {
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 1.5rem;
}

.chat-sidebar-header {
    margin-bottom: 1.5rem;
}

.chat-sidebar-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.chat-search {
    width: 100%;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.chat-search:focus {
    border-color: var(--primary);
}

.chat-contact-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chat-contact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.chat-contact:hover {
    background: var(--bg-card);
}

.chat-contact.active {
    background: var(--bg-card);
    border: 1px solid var(--primary);
}

.chat-contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    position: relative;
}

.chat-contact-online {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    border: 2px solid var(--bg-surface);
}

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

.chat-contact-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-contact-preview {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-contact-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* Chat Main Area */
.chat-main {
    display: flex;
    flex-direction: column;
    background: var(--bg-dark);
}

.chat-header {
    padding: 1rem 1.5rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.chat-header-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.chat-header-status {
    font-size: 0.75rem;
    color: var(--success);
}

.chat-header-actions {
    display: flex;
    gap: 0.5rem;
}

.chat-action-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.chat-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    display: flex;
    gap: 0.75rem;
    max-width: 80%;
    animation: messageIn 0.3s ease;
}

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

.message-incoming {
    align-self: flex-start;
}

.message-outgoing {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.message-outgoing .message-avatar {
    background: var(--gradient-primary);
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    line-height: 1.5;
}

.message-incoming .message-bubble {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
}

.message-outgoing .message-bubble {
    background: var(--gradient-primary);
    border-bottom-right-radius: 4px;
}

.message-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.message-outgoing .message-time {
    text-align: right;
    color: rgba(255,255,255,0.6);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: fit-content;
    align-self: flex-start;
    margin-left: 40px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 100% { transform: translateY(0); opacity: 0.4; }
    50% { transform: translateY(-6px); opacity: 1; }
}

/* Chat Input */
.chat-input-area {
    padding: 1rem 1.5rem;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

.chat-input-wrapper {
    flex: 1;
    display: flex;
    align-items: flex-end;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem;
    transition: border-color 0.2s;
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary);
}

.chat-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    padding: 0.375rem 0.5rem;
    outline: none;
    resize: none;
    max-height: 120px;
    min-height: 20px;
    font-family: inherit;
    line-height: 1.4;
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Video Call / Tutor Interface
   ============================================ */
.tutor-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    height: calc(100vh - 73px);
    margin-top: 73px;
    gap: 0;
}

@media (max-width: 960px) {
    .tutor-container {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr 1fr;
    }
}

.tutor-video-area {
    background: #0A0612;
    display: flex;
    flex-direction: column;
    position: relative;
}

.tutor-video-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.tutor-avatar-display {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    position: relative;
    animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% { box-shadow: 0 0 40px rgba(139,92,246,0.3); }
    50% { box-shadow: 0 0 80px rgba(139,92,246,0.5); }
}

.tutor-avatar-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 3px solid var(--primary);
    opacity: 0.5;
    animation: ringPulse 2s ease-in-out infinite;
}

@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.05); opacity: 0.6; }
}

.tutor-name-overlay {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tutor-name-overlay-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
}

.tutor-name-overlay-text {
    font-size: 0.85rem;
    font-weight: 600;
}

.tutor-self-video {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 160px;
    height: 120px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    overflow: hidden;
}

.tutor-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(0,0,0,0.3);
}

.tutor-control-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.1rem;
}

.tutor-control-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

.tutor-control-btn.active {
    background: var(--primary);
    border-color: var(--primary);
}

.tutor-control-btn.end-call {
    background: #EF4444;
    border-color: #EF4444;
}

.tutor-control-btn.end-call:hover {
    background: #DC2626;
}

/* Tutor Chat Panel */
.tutor-chat-panel {
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.tutor-chat-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.tutor-chat-tabs {
    display: flex;
    gap: 0.5rem;
}

.tutor-chat-tab {
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.tutor-chat-tab.active {
    background: var(--gradient-primary);
    color: white;
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

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

.pricing-card.featured {
    border-color: var(--primary);
    background: var(--bg-card-hover);
}

.pricing-card.featured::before {
    content: 'MOST POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.25rem 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.pricing-plan-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.pricing-price-currency {
    font-size: 1.5rem;
    vertical-align: super;
}

.pricing-price-period {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.pricing-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pricing-feature-check {
    color: var(--success);
    font-weight: 700;
}

.pricing-cta {
    width: 100%;
    padding: 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

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

.pricing-cta-secondary {
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text-primary);
}

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

/* ============================================
   Testimonials
   ============================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.testimonial-stars {
    color: var(--warning);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.testimonial-author-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.testimonial-author-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 4rem 2rem 2rem;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

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

.footer-brand-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    line-height: 1.6;
}

.footer-col-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-link {
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--primary-light);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-text {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   Auth Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    max-width: 420px;
    width: 100%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--primary);
}

.form-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    margin-top: 0.5rem;
}

.form-btn:hover {
    box-shadow: var(--shadow-glow);
}

.form-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.social-login-btns {
    display: flex;
    gap: 0.75rem;
}

.social-btn {
    flex: 1;
    padding: 0.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.social-btn:hover {
    border-color: var(--primary);
    background: var(--bg-card-hover);
}

.form-switch {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-switch-link {
    color: var(--primary-light);
    cursor: pointer;
    font-weight: 600;
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ============================================
   Utilities
   ============================================ */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-wrapper {
    margin-top: 73px;
    min-height: calc(100vh - 73px);
}

/* How it works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step-card {
    text-align: center;
    padding: 2rem 1.5rem;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    margin: 0 auto 1rem;
}

.step-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Empty state */
.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.chat-empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.chat-empty-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.chat-empty-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}