/* ═══════════════════════════════════════════════════════════════════
   COMOT — Language Exchange Platform
   Modern • Light • Colorful • RWD
   ═══════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700;9..144,800&display=swap');

:root {
    --clr-bg:        #F8F6F2;
    --clr-surface:   #FFFFFF;
    --clr-surface-2: #F0EDE8;
    --clr-text:      #1A1A2E;
    --clr-text-2:    #6B6B80;
    --clr-border:    #E5E2DC;

    --clr-coral:     #FF6B6B;
    --clr-coral-lt:  #FFF0F0;
    --clr-teal:      #2EC4B6;
    --clr-teal-lt:   #E8FAF8;
    --clr-gold:      #FFB347;
    --clr-gold-lt:   #FFF8EC;
    --clr-violet:    #7C5CFC;
    --clr-violet-lt: #F3F0FF;
    --clr-sky:       #4DACF7;
    --clr-sky-lt:    #EDF6FF;
    --clr-rose:      #F472B6;
    --clr-rose-lt:   #FDF2F8;

    --font-display: 'Fraunces', Georgia, serif;
    --font-body:    'DM Sans', -apple-system, sans-serif;

    --radius:    12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow:    0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.04), 0 12px 32px rgba(0,0,0,0.1);
    --shadow-xl: 0 8px 16px rgba(0,0,0,0.06), 0 24px 48px rgba(0,0,0,0.12);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── RESET ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--clr-text);
    background: var(--clr-bg);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    position: relative;
}

/* ─── CUTE BACKGROUND DECORATIONS ────────────────────────────────── */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(ellipse 300px 300px at 5% 8%, rgba(255,107,107,0.07) 0%, transparent 100%),
        radial-gradient(ellipse 250px 250px at 92% 5%, rgba(124,92,252,0.06) 0%, transparent 100%),
        radial-gradient(circle 200px at 3% 45%, rgba(46,196,182,0.05) 0%, transparent 100%),
        radial-gradient(circle 180px at 95% 40%, rgba(255,179,71,0.05) 0%, transparent 100%),
        radial-gradient(ellipse 280px 200px at 10% 85%, rgba(244,114,182,0.06) 0%, transparent 100%),
        radial-gradient(ellipse 220px 220px at 88% 80%, rgba(77,172,247,0.05) 0%, transparent 100%),
        radial-gradient(circle 3px at 15% 20%, rgba(255,107,107,0.15) 0%, transparent 100%),
        radial-gradient(circle 2px at 25% 55%, rgba(124,92,252,0.15) 0%, transparent 100%),
        radial-gradient(circle 3px at 80% 15%, rgba(46,196,182,0.15) 0%, transparent 100%),
        radial-gradient(circle 2px at 70% 60%, rgba(255,179,71,0.15) 0%, transparent 100%),
        radial-gradient(circle 3px at 45% 75%, rgba(244,114,182,0.15) 0%, transparent 100%),
        radial-gradient(circle 2px at 60% 30%, rgba(77,172,247,0.15) 0%, transparent 100%),
        radial-gradient(circle 2px at 35% 90%, rgba(124,92,252,0.12) 0%, transparent 100%),
        radial-gradient(circle 3px at 90% 55%, rgba(255,107,107,0.12) 0%, transparent 100%);
}
body > * { position: relative; z-index: 1; }
a { color: var(--clr-violet); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--clr-coral); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ─── LAYOUT ─────────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 640px; margin: 0 auto; padding: 0 20px; }
.container-md { max-width: 860px; margin: 0 auto; padding: 0 20px; }

/* ─── NAVIGATION ─────────────────────────────────────────────────── */
.navbar {
    background: var(--clr-surface);
    border-bottom: 1px solid var(--clr-border);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(255,255,255,0.92);
}
.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.navbar-logo {
    display: flex;
    align-items: center;
}
.navbar-logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
}
.navbar-logo:hover {
    opacity: 0.85;
}
@media (max-width: 768px) {
    .navbar-logo-img {
        height: 42px;
    }
}
.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-coral);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    padding: 0 5px;
    margin-left: 4px;
    vertical-align: middle;
}
.nav-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    object-fit: cover;
    border: none;
}
.nav-avatar-placeholder {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--clr-teal), var(--clr-sky));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
}
.nav-menu-circle {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--clr-surface-2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-text-2);
    transition: var(--transition);
}
.nav-badge-dot {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--clr-coral);
    border: 2px solid white;
}

/* ─── PROFILE DROPDOWN ───────────────────────────────────────────── */
.profile-dropdown {
    position: relative;
}
.profile-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    padding: 5px 5px 5px 12px;
    border-radius: 999px;
    cursor: pointer;
    border: 1px solid var(--clr-border);
    background: var(--clr-surface);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    transition: var(--transition);
}
.profile-dropdown-toggle:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-color: #ccc;
}
.profile-dropdown-toggle:hover .nav-menu-circle {
    border-color: var(--clr-violet);
    color: var(--clr-violet);
}
.nav-hamburger {
    display: flex;
    align-items: center;
    color: var(--clr-text-2);
}
.profile-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    padding: 6px;
    z-index: 150;
    animation: fadeUp 0.15s ease;
}
.profile-dropdown.open .profile-dropdown-menu {
    display: block;
}
.profile-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--clr-text-2);
    transition: var(--transition);
    white-space: nowrap;
}
.profile-dropdown-menu a:hover {
    background: var(--clr-surface-2);
    color: var(--clr-text);
}
.profile-dropdown-menu a svg {
    flex-shrink: 0;
    opacity: 0.5;
}
.profile-dropdown-menu a:hover svg {
    opacity: 1;
}
.profile-dropdown-menu .dropdown-cta {
    color: white;
    background: linear-gradient(135deg, var(--clr-coral) 0%, #FF8E53 100%);
    font-weight: 600;
    margin-top: 2px;
}
.profile-dropdown-menu .dropdown-cta:hover {
    color: white;
    opacity: 0.9;
}
.profile-dropdown-menu .dropdown-cta svg {
    opacity: 1;
    color: white;
}
.profile-dropdown-divider {
    height: 1px;
    background: var(--clr-border);
    margin: 4px 10px;
}
.profile-dropdown-header {
    padding: 10px 16px 6px;
    font-size: 0.82rem;
    color: var(--clr-text-2);
}
.profile-dropdown-header strong {
    display: block;
    font-size: 0.92rem;
    color: var(--clr-text);
}

/* Inline icon helper */
.icon-inline {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
}

/* ─── BUTTONS ────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: linear-gradient(135deg, var(--clr-coral) 0%, #FF8E53 100%);
    color: white;
}
.btn-primary:hover { color: white; box-shadow: 0 4px 16px rgba(255,107,107,0.4); }

.btn-secondary {
    background: var(--clr-violet);
    color: white;
}
.btn-secondary:hover { color: white; box-shadow: 0 4px 16px rgba(124,92,252,0.4); }

.btn-teal { background: var(--clr-teal); color: white; }
.btn-teal:hover { color: white; box-shadow: 0 4px 16px rgba(46,196,182,0.4); }

.btn-outline {
    background: transparent;
    border: 2px solid var(--clr-border);
    color: var(--clr-text);
}
.btn-outline:hover { border-color: var(--clr-violet); color: var(--clr-violet); }

.btn-ghost { background: transparent; color: var(--clr-text-2); }
.btn-ghost:hover { background: var(--clr-surface-2); color: var(--clr-text); }

.btn-gold { background: linear-gradient(135deg, var(--clr-gold), #FF9A3E); color: white; }
.btn-gold:hover { color: white; box-shadow: 0 4px 16px rgba(255,179,71,0.4); }

.btn-sm { padding: 6px 14px; font-size: 0.82rem; border-radius: 8px; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-full { width: 100%; }
.btn-icon { padding: 8px; border-radius: 8px; }

.btn-subscribe {
    background: linear-gradient(135deg, var(--clr-gold), var(--clr-coral));
    color: white;
    font-weight: 700;
    padding: 14px 32px;
    font-size: 1rem;
    border-radius: 14px;
    box-shadow: 0 4px 20px rgba(255,107,107,0.3);
}
.btn-subscribe:hover { color: white; transform: translateY(-2px); box-shadow: 0 6px 28px rgba(255,107,107,0.4); }

/* ─── CARDS ──────────────────────────────────────────────────────── */
.card {
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--clr-border);
    overflow: hidden;
    transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-body { padding: 24px; }
.card-flat { border: none; box-shadow: var(--shadow); }
.card-flat:hover { box-shadow: var(--shadow-xl); }

/* ─── TEACHER CARDS ──────────────────────────────────────────────── */
.teacher-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding: 24px 0;
}
.teacher-card { position: relative; }
.teacher-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--clr-teal-lt), var(--clr-violet-lt));
}
.teacher-card-img-placeholder {
    width: 100%;
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-family: var(--font-display);
    font-weight: 800;
    color: white;
}
.teacher-card .card-body { padding: 20px; }
.teacher-card-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.teacher-card-lang {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    margin-bottom: 8px;
}
.teacher-card-tagline {
    color: var(--clr-text-2);
    font-size: 0.88rem;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.teacher-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--clr-border);
}
.teacher-card-rating { font-weight: 600; font-size: 0.88rem; }
.teacher-card-actions { display: flex; gap: 8px; }

.interest-count {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--clr-coral);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Color variants for language tags */
.lang-tag-teal { background: var(--clr-teal-lt); color: var(--clr-teal); }
.lang-tag-coral { background: var(--clr-coral-lt); color: var(--clr-coral); }
.lang-tag-violet { background: var(--clr-violet-lt); color: var(--clr-violet); }
.lang-tag-gold { background: var(--clr-gold-lt); color: #c48000; }
.lang-tag-sky { background: var(--clr-sky-lt); color: var(--clr-sky); }
.lang-tag-rose { background: var(--clr-rose-lt); color: var(--clr-rose); }

/* ─── HOW IT WORKS SECTION ───────────────────────────────────────── */
.section-how-it-works {
    position: relative;
    overflow: hidden;
}
.section-how-it-works::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -10%;
    width: 50%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(255,107,107,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.section-how-it-works::after {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 40%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(124,92,252,0.06) 0%, transparent 70%);
    pointer-events: none;
}
.section-how-it-works .container { position: relative; z-index: 1; }

/* ─── WHY COMOT SECTION ──────────────────────────────────────────── */
.section-why-comot {
    position: relative;
    background: url('/background_1.png') center / cover no-repeat;
    border-top: 1px solid var(--clr-border);
    border-bottom: 1px solid var(--clr-border);
}
.section-why-comot::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.6);
    pointer-events: none;
    z-index: 0;
}
.section-why-comot .container { position: relative; z-index: 1; }

/* ─── HERO SECTION ───────────────────────────────────────────────── */
.hero {
    padding: 80px 20px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -10%;
    width: 50%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(255,107,107,0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 40%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(124,92,252,0.06) 0%, transparent 70%);
    pointer-events: none;
}

/* floating decorative shapes */
.hero-deco {
    position: absolute;
    pointer-events: none;
    opacity: 0.12;
    z-index: 0;
}
.hero-deco--heart1 { top: 12%; left: 6%; animation: floatA 6s ease-in-out infinite; color: var(--clr-coral); }
.hero-deco--heart2 { top: 25%; right: 8%; animation: floatB 7s ease-in-out infinite; color: var(--clr-rose); }
.hero-deco--circle1 { bottom: 18%; left: 10%; width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid var(--clr-teal); animation: floatB 8s ease-in-out infinite; }
.hero-deco--circle2 { top: 30%; right: 15%; width: 12px; height: 12px; border-radius: 50%; background: var(--clr-gold); animation: floatA 5s ease-in-out infinite; }
.hero-deco--dot1 { top: 60%; left: 4%; width: 8px; height: 8px; border-radius: 50%; background: var(--clr-violet); animation: floatA 9s ease-in-out infinite; }
.hero-deco--dot2 { bottom: 25%; right: 5%; width: 10px; height: 10px; border-radius: 50%; background: var(--clr-sky); animation: floatB 6s ease-in-out infinite; }
.hero-deco--star1 { top: 15%; right: 20%; animation: floatSpin 10s linear infinite; color: var(--clr-gold); }
.hero-deco--plus1 { bottom: 30%; left: 18%; font-size: 22px; font-weight: 700; color: var(--clr-teal); animation: floatB 7s ease-in-out infinite; }
.hero-deco--plus2 { top: 20%; left: 22%; font-size: 16px; font-weight: 700; color: var(--clr-violet); animation: floatA 8s ease-in-out infinite; }

@keyframes floatA {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}
@keyframes floatB {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(10px) rotate(5deg); }
}
@keyframes floatSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -1px;
}
.hero-title .accent {
    background: linear-gradient(135deg, var(--clr-coral), var(--clr-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 1.15rem;
    color: var(--clr-text-2);
    max-width: 520px;
    margin: 0 auto 32px;
    line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
    margin-top: 48px;
    flex-wrap: wrap;
}
.hero-stat-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--clr-violet);
}
.hero-stat-label {
    font-size: 0.85rem;
    color: var(--clr-text-2);
    font-weight: 500;
}

/* ─── SECTIONS ───────────────────────────────────────────────────── */
.section { padding: 48px 0; }
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 12px;
}
.section-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.section-sub {
    color: var(--clr-text-2);
    margin-bottom: 24px;
}

/* ─── HOW IT WORKS ───────────────────────────────────────────────── */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 32px;
}
.step-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    transition: var(--transition);
}
.step-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.step-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 16px;
}
.step-card h3 {
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: 8px;
}
.step-card p { color: var(--clr-text-2); font-size: 0.9rem; }

/* ─── FORMS ──────────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 6px;
    color: var(--clr-text);
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--clr-border);
    border-radius: 10px;
    font-size: 0.95rem;
    color: var(--clr-text);
    background: var(--clr-surface);
    transition: var(--transition);
    outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--clr-violet);
    box-shadow: 0 0 0 3px rgba(124,92,252,0.12);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-hint { font-size: 0.8rem; color: var(--clr-text-2); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* ─── FLASH MESSAGES ─────────────────────────────────────────────── */
.flash {
    padding: 14px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}
.flash-success { background: var(--clr-teal-lt); color: #0d7a6f; border: 1px solid rgba(46,196,182,0.3); }
.flash-error { background: var(--clr-coral-lt); color: #c94040; border: 1px solid rgba(255,107,107,0.3); }
.flash-info { background: var(--clr-sky-lt); color: #2a7ab5; border: 1px solid rgba(77,172,247,0.3); }

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

/* ─── AUTH PAGES ──────────────────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}
.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--clr-surface);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--clr-border);
}
.auth-card .logo-big {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--clr-coral), var(--clr-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.auth-card .auth-sub {
    text-align: center;
    color: var(--clr-text-2);
    margin-bottom: 28px;
}
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0;
    color: var(--clr-text-2);
    font-size: 0.82rem;
}
.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--clr-border);
}

/* ─── INSTALL PAGE ───────────────────────────────────────────────── */
.page-install { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.install-container { width: 100%; max-width: 480px; padding: 20px; }
.install-card {
    background: var(--clr-surface);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--clr-border);
}
.install-card .logo-big {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--clr-coral), var(--clr-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.install-sub { color: var(--clr-text-2); margin-bottom: 24px; }

/* ─── PROFILE PAGE ───────────────────────────────────────────────── */
.profile-header {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    padding: 40px 0;
    flex-wrap: wrap;
}
.profile-avatar {
    width: 160px;
    height: 160px;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: var(--shadow);
    flex-shrink: 0;
}
.profile-avatar-placeholder {
    width: 160px;
    height: 160px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-family: var(--font-display);
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}
.profile-info { flex: 1; min-width: 200px; }
.profile-name {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 4px;
}
.profile-meta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 12px; }
.profile-meta-item {
    font-size: 0.88rem;
    color: var(--clr-text-2);
    display: flex;
    align-items: center;
    gap: 4px;
}
.profile-bio { color: var(--clr-text-2); margin-bottom: 16px; line-height: 1.7; }
.profile-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ─── CLASSES ────────────────────────────────────────────────────── */
.class-list { display: flex; flex-direction: column; gap: 16px; }
.class-card { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.class-card .card-body { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; width: 100%; }
.class-info { flex: 1; min-width: 200px; }
.class-title { font-weight: 700; font-size: 1.05rem; margin-bottom: 4px; }
.class-meta { font-size: 0.85rem; color: var(--clr-text-2); }
.class-progress { min-width: 140px; text-align: center; }
.class-progress-bar {
    height: 8px;
    background: var(--clr-surface-2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 6px;
}
.class-progress-fill {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--clr-teal), var(--clr-sky));
    transition: width 0.5s ease;
}
.class-progress-label { font-size: 0.8rem; color: var(--clr-text-2); }
.class-status {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
}
.status-filling { background: var(--clr-gold-lt); color: #b87a00; }
.status-open { background: var(--clr-teal-lt); color: #0d7a6f; }
.status-closed { background: var(--clr-surface-2); color: var(--clr-text-2); }

/* ─── MESSAGES ───────────────────────────────────────────────────── */
.messages-layout { display: grid; grid-template-columns: 300px 1fr; gap: 0; min-height: 600px; }
.messages-sidebar {
    border-right: 1px solid var(--clr-border);
    overflow-y: auto;
}
.msg-thread {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--clr-border);
}
.msg-thread:hover, .msg-thread.active { background: var(--clr-violet-lt); }
.msg-thread-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
}
.msg-thread-avatar-placeholder {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
    font-size: 0.85rem;
}
.msg-thread-info { flex: 1; min-width: 0; }
.msg-thread-name { font-weight: 600; font-size: 0.9rem; }
.msg-thread-preview {
    font-size: 0.82rem;
    color: var(--clr-text-2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.msg-thread-time { font-size: 0.75rem; color: var(--clr-text-2); white-space: nowrap; }
.msg-thread-unread .msg-thread-name { color: var(--clr-violet); }
.msg-thread-unread::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--clr-coral);
    flex-shrink: 0;
    align-self: center;
}

.messages-main { display: flex; flex-direction: column; }
.messages-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--clr-border);
    font-weight: 600;
}
.messages-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.msg-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.9rem;
    line-height: 1.5;
}
.msg-sent {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--clr-violet), #9B7DFC);
    color: white;
    border-bottom-right-radius: 4px;
}
.msg-received {
    align-self: flex-start;
    background: var(--clr-surface-2);
    border-bottom-left-radius: 4px;
}
.msg-time { font-size: 0.72rem; opacity: 0.7; margin-top: 4px; }
.messages-compose {
    padding: 16px 24px;
    border-top: 1px solid var(--clr-border);
    display: flex;
    gap: 10px;
}
.messages-compose input { flex: 1; }

.msg-locked {
    text-align: center;
    padding: 40px;
    color: var(--clr-text-2);
}
.msg-locked-icon { font-size: 3rem; margin-bottom: 12px; }
.msg-locked h3 { font-family: var(--font-display); margin-bottom: 8px; color: var(--clr-text); }
.msg-locked p { margin-bottom: 20px; max-width: 360px; margin-left: auto; margin-right: auto; }

@media (max-width: 768px) {
    .messages-layout { grid-template-columns: 1fr; }
    .messages-sidebar { max-height: 300px; }
}

/* ─── SUBSCRIPTION BANNER ────────────────────────────────────────── */
.sub-banner {
    background: linear-gradient(135deg, var(--clr-gold-lt) 0%, var(--clr-coral-lt) 50%, var(--clr-violet-lt) 100%);
    border: 2px solid var(--clr-gold);
    border-radius: var(--radius-xl);
    padding: 32px;
    text-align: center;
    margin: 24px 0;
}
.sub-banner h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 8px;
}
.sub-banner p { color: var(--clr-text-2); margin-bottom: 20px; }
.sub-price {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--clr-coral);
    margin-bottom: 4px;
}
.sub-price-note { font-size: 0.85rem; color: var(--clr-text-2); margin-bottom: 20px; }
.sub-perks {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.sub-perk {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}
.sub-perk-icon { font-size: 1.2rem; }

/* ─── DASHBOARD ──────────────────────────────────────────────────── */
.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.dash-stat {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--clr-border);
}
.dash-stat-num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
}
.dash-stat-label { font-size: 0.85rem; color: var(--clr-text-2); }

/* ─── ADMIN ──────────────────────────────────────────────────────── */
.admin-layout { padding: 32px 0; }
.admin-tabs { display: flex; gap: 4px; margin-bottom: 24px; flex-wrap: wrap; }
.admin-tab {
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--clr-text-2);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.admin-tab:hover { background: var(--clr-surface-2); color: var(--clr-text); }
.admin-tab.active { background: var(--clr-violet); color: white; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--clr-border);
    font-size: 0.88rem;
}
.data-table th {
    background: var(--clr-surface-2);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--clr-text-2);
    position: sticky;
    top: 0;
}
.data-table tr:hover td { background: var(--clr-violet-lt); }
.data-table .table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--clr-border); }

.badge {
    display: inline-flex;
    padding: 3px 9px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-teacher { background: var(--clr-teal-lt); color: var(--clr-teal); }
.badge-admin { background: var(--clr-coral-lt); color: var(--clr-coral); }
.badge-subscriber { background: var(--clr-gold-lt); color: #b87a00; }
.badge-active { background: var(--clr-teal-lt); color: #0d7a6f; }
.badge-inactive { background: var(--clr-surface-2); color: var(--clr-text-2); }

/* ─── EMPTY STATES ───────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}
.empty-state-icon { font-size: 3.5rem; margin-bottom: 16px; }
.empty-state h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 8px;
}
.empty-state p { color: var(--clr-text-2); margin-bottom: 20px; }

/* ─── FOOTER ─────────────────────────────────────────────────────── */
.footer {
    background: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    padding: 40px 20px;
    text-align: center;
    margin-top: 60px;
}
.footer-logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--clr-coral), var(--clr-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}
.footer-text { color: var(--clr-text-2); font-size: 0.85rem; }

/* ─── UTILITIES ──────────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.hidden { display: none !important; }
.visible { display: block !important; }

/* Color BG helpers */
.bg-coral { background: linear-gradient(135deg, #FF6B6B, #FF8E53); }
.bg-teal { background: linear-gradient(135deg, #2EC4B6, #38D9A9); }
.bg-violet { background: linear-gradient(135deg, #7C5CFC, #9B7DFC); }
.bg-gold { background: linear-gradient(135deg, #FFB347, #FFD700); }
.bg-sky { background: linear-gradient(135deg, #4DACF7, #74C0FC); }
.bg-rose { background: linear-gradient(135deg, #F472B6, #FB7185); }

/* ─── ANIMATIONS ─────────────────────────────────────────────────── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade { animation: fadeIn 0.5s ease; }
.animate-up { animation: fadeUp 0.5s ease; }
.animate-up-delay-1 { animation: fadeUp 0.5s ease 0.1s both; }
.animate-up-delay-2 { animation: fadeUp 0.5s ease 0.2s both; }
.animate-up-delay-3 { animation: fadeUp 0.5s ease 0.3s both; }

/* ─── MODAL ──────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}
.modal {
    background: var(--clr-surface);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: fadeUp 0.3s ease;
}
.modal-close {
    float: right;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--clr-text-2);
    padding: 4px;
}
.modal h2 {
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: 16px;
}

/* ─── MISC ───────────────────────────────────────────────────────── */
.tag-list { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--clr-surface-2);
    color: var(--clr-text-2);
}

.divider {
    height: 1px;
    background: var(--clr-border);
    margin: 24px 0;
}

.avatar-sm {
    width: 36px; height: 36px; border-radius: 10px;
    object-fit: cover;
}
.avatar-md {
    width: 48px; height: 48px; border-radius: 12px;
    object-fit: cover;
}

/* Truncate multi-line */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ─── DISCOVER (SWIPE) PAGE ──────────────────────────────────────── */
.discover-card {
    max-width: 400px;
    margin: 0 auto;
    background: var(--clr-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--clr-border);
    overflow: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.discover-photo-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    background: var(--clr-surface-2);
    overflow: hidden;
}
.discover-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.discover-photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    font-weight: 800;
    color: white;
    opacity: 0.7;
}
.discover-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--clr-violet);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.discover-info {
    padding: 20px 24px 8px;
    text-align: center;
}
.discover-name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.discover-lang {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--clr-text-2);
    font-size: 0.9rem;
}
.discover-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 16px 24px 28px;
}
.discover-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 14px 18px;
    border: 2px solid var(--clr-border);
    border-radius: 16px;
    background: var(--clr-surface);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--clr-text-2);
    min-width: 72px;
}
.discover-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.discover-btn-skip:hover { border-color: var(--clr-text-2); color: var(--clr-text); }
.discover-btn-learn { border-color: var(--clr-teal-lt); color: var(--clr-teal); background: var(--clr-teal-lt); }
.discover-btn-learn:hover { border-color: var(--clr-teal); background: white; }
.discover-btn-invite { border-color: var(--clr-coral-lt); color: var(--clr-coral); background: var(--clr-coral-lt); }
.discover-btn-invite:hover { border-color: var(--clr-coral); background: white; }
.discover-invite-wrap { position: relative; }
.discover-invite-menu {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 160px;
    z-index: 50;
}
.discover-invite-menu.open { display: block; animation: fadeUp 0.15s ease; }
.discover-invite-label { font-size: 0.72rem; color: var(--clr-text-2); padding: 4px 10px; font-weight: 600; }
.discover-invite-option {
    display: block;
    width: 100%;
    text-align: left;
    padding: 10px 14px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--clr-text);
    transition: var(--transition);
}
.discover-invite-option:hover { background: var(--clr-coral-lt); color: var(--clr-coral); }
.discover-empty { text-align: center; padding: 60px 20px; }

/* ─── NOTIFICATION LIST (Dashboard) ──────────────────────────────── */
.notif-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    margin-bottom: 8px;
    transition: var(--transition);
}
.notif-card.unread { border-left: 3px solid var(--clr-coral); background: var(--clr-coral-lt); }
.notif-card.notif-learn { border-left: 3px solid var(--clr-teal); }
.notif-card.notif-invite { border-left: 3px solid var(--clr-violet); }
.notif-icon { flex-shrink: 0; width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; }
.notif-body { flex: 1; }
.notif-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 2px; }
.notif-text { font-size: 0.82rem; color: var(--clr-text-2); line-height: 1.4; }
.notif-time { font-size: 0.75rem; color: var(--clr-text-2); white-space: nowrap; margin-top: 2px; }

/* ─── RESPONSIVE TWEAKS ──────────────────────────────────────────── */
@media (max-width: 640px) {
    .hero { padding: 48px 16px 40px; }
    .hero-stats { gap: 24px; }
    .profile-header { gap: 20px; }
    .profile-avatar, .profile-avatar-placeholder { width: 100px; height: 100px; font-size: 2.5rem; border-radius: 18px; }
    .profile-name { font-size: 1.5rem; }
    .section { padding: 32px 0; }
    .section-title { font-size: 1.3rem; }
    .sub-banner { padding: 24px 16px; }
    .auth-card { padding: 28px 24px; }
    .discover-card { max-width: 100%; }
    .discover-actions { gap: 8px; }
    .discover-btn { padding: 10px 12px; min-width: 60px; font-size: 0.68rem; }
    .discover-photo-wrap { aspect-ratio: 3 / 4; }
}