@import url('https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0c1220;
  --surface: #131b2e;
  --surface-2: #1a2540;
  --card: #17203a;
  --border: #253157;
  --text: #eef2fb;
  --text-muted: #8d9ac2;
  --gold: #9c9a95;
  --gold-dim: #a67d2c;
  --teal: #33d6b8;
  --rose: #ef6f6f;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 20% -10%, #1a2447 0%, var(--bg) 55%);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  min-height: 100vh;
}

h1,
h2,
h3,
.display {
  font-family: 'Sora', system-ui, sans-serif;
  letter-spacing: -0.01em;
}

a {
  color: var(--gold);
  text-decoration: none;
}

/* ---------- Layout shells ---------- */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Sora';
  font-weight: 700;
  font-size: 18px;
}

/* Signature element: the "campus seal" — a notched ring standing in for a
   verified university ID badge, used as the logo mark and around avatars. */
.seal {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: conic-gradient(from 90deg, var(--gold), var(--teal), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.seal::after {
  content: "";
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg);
  position: absolute;
}

.seal-mark {
  position: relative;
  z-index: 1;
  font-size: 13px;
  font-weight: 800;
  color: var(--gold);
  font-family: 'Sora';
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}

.auth-brand .brand-logo {
  width: 52px;
  height: 52px;
}

.avatar-ring {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  padding: 3px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avatar-ring.online {
  background: conic-gradient(var(--teal), var(--gold), var(--teal));
}

.avatar-ring .avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora';
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-links a,
.nav-links button {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

.nav-link {
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  position: relative;
}

.nav-link-active {
  color: var(--gold) !important;
  border-bottom-color: var(--gold);
}

.unread-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  margin-left: 4px;
  background: var(--rose);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  border-radius: 999px;
  vertical-align: middle;
}

/* ---------- Mobile hamburger nav ---------- */
.mobile-only {
  display: none;
}

.hamburger-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}

.hamburger-btn span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.2s;
}

.hamburger-btn.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-nav-panel {
  display: none;
  position: fixed;
  top: 0;
  right: -280px;
  width: 260px;
  height: 100vh;
  background: var(--card);
  border-left: 1px solid var(--border);
  padding: 80px 20px 20px;
  z-index: 101;
  transition: right 0.25s ease;
  flex-direction: column;
  gap: 4px;
  box-shadow: -20px 0 40px rgba(0, 0, 0, 0.4);
}

.mobile-nav-panel.open {
  right: 0;
}

.mobile-nav-panel a {
  padding: 12px 10px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.mobile-nav-panel a.nav-link-active {
  background: rgba(242, 177, 52, 0.1);
  color: var(--gold) !important;
  border-bottom: none;
}

.mobile-nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 16, 0.6);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.mobile-nav-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 720px) {
  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: flex;
  }

  .mobile-nav-panel {
    display: flex;
  }

  .mobile-nav-backdrop {
    display: block;
  }
}

@media (max-width: 640px) {
  .hide-mobile {
    display: none;
  }
}

main.container {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px 80px;
  flex: 1;
}

/* ---------- Auth pages ---------- */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.auth-card h1 {
  font-size: 22px;
  margin: 18px 0 4px;
}

.auth-sub {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.auth-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.auth-brand .seal {
  width: 46px;
  height: 46px;
}

.auth-brand .seal-mark {
  font-size: 17px;
}

.tab-switch {
  display: flex;
  background: var(--surface-2);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 22px;
}

.tab-switch button {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 9px 0;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  font-family: 'Inter';
  transition: 0.2s;
}

.tab-switch button.active {
  background: var(--gold);
  color: #1a1206;
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: 'Inter';
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--gold);
}

.field-row {
  display: flex;
  gap: 10px;
}

.field-row .field {
  flex: 1;
}

.role-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.role-toggle label {
  flex: 1;
  text-align: center;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
}

.role-toggle input {
  display: none;
}

.role-toggle input:checked+span {
  color: #1a1206;
}

.role-toggle label:has(input:checked) {
  background: var(--gold);
  border-color: var(--gold);
  color: #1a1206;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-family: 'Inter';
  font-weight: 600;
  font-size: 14px;
  transition: transform 0.12s, opacity 0.12s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--gold);
  color: #1a1206;
}

.btn-primary:hover {
  opacity: 0.92;
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-teal {
  background: var(--teal);
  color: #052b24;
}

.btn-danger {
  background: transparent;
  color: var(--rose);
  border: 1px solid rgba(239, 111, 111, 0.4);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 12.5px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- Cards / sections ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title h2 {
  font-size: 18px;
  margin: 0;
}

.eyebrow {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 6px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 26px;
}

.stat-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.stat-box .num {
  font-family: 'Sora';
  font-size: 26px;
  font-weight: 700;
}

.stat-box .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Filters / chips ---------- */
.chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.chip {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid #888ea2;
  background: #3a4056;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: 0.15s;
}

.chip.active {
  background: var(--gold);
  color: #1a1206;
  border-color: var(--gold);
}

/* ---------- Teacher list ---------- */
.teacher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.teacher-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.teacher-card .head {
  display: flex;
  gap: 12px;
  align-items: center;
}

.teacher-card .name-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.teacher-card .name {
  font-family: 'Sora';
  font-weight: 700;
  font-size: 15.5px;
}

.teacher-card .uni {
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
}

.badge-status {
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
}

.badge-online {
  background: rgba(51, 214, 184, 0.15);
  color: var(--teal);
}

.badge-offline {
  background: rgba(141, 154, 194, 0.15);
  color: var(--text-muted);
}

.badge-girls {
  background: rgba(239, 111, 111, 0.15);
  color: var(--rose);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
}

.teacher-card .bio {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  min-height: 38px;
}

.teacher-card .meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-muted);
}

.stars {
  color: var(--gold);
  font-weight: 700;
}

/* ---------- Package modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 16, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  width: 100%;
  max-width: 420px;
}

.pkg-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: 0.15s;
}

.pkg-option:hover {
  border-color: var(--gold);
}

.pkg-option.selected {
  border-color: var(--gold);
  background: rgba(242, 177, 52, 0.08);
}

.pkg-option .mins {
  font-weight: 700;
  font-family: 'Sora';
}

.pkg-option .price {
  color: var(--gold);
  font-weight: 700;
}

/* ---------- Wallet ---------- */
.wallet-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.wallet-balance {
  font-family: 'Sora';
  font-size: 34px;
  font-weight: 800;
}

.wallet-balance small {
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- Call screen ---------- */
.call-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #05070d;
}

.call-stage {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.remote-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0a0e18;
}

.call-waiting {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  z-index: 2;
}

.local-video-wrap {
  position: absolute;
  bottom: 110px;
  right: 22px;
  width: 150px;
  height: 200px;
  border-radius: 16px;
  overflow: hidden;
  border: 2px solid var(--border);
  box-shadow: var(--shadow);
}

.local-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

.call-status {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.call-status .name {
  font-family: 'Sora';
  font-weight: 700;
  font-size: 17px;
}

.call-status .timer {
  color: var(--teal);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  margin-top: 3px;
}

.call-controls {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 24px;
  background: rgba(12, 18, 32, 0.6);
}

.ctrl-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--surface-2);
  color: var(--text);
  transition: 0.15s;
}

.ctrl-btn.off {
  background: rgba(239, 111, 111, 0.2);
  color: var(--rose);
}

.ctrl-btn.end {
  background: var(--rose);
  color: #2b0505;
}

.call-waiting {
  color: var(--text-muted);
  text-align: center;
}

/* ---------- Review / rating ---------- */
.star-input {
  display: flex;
  gap: 6px;
  font-size: 30px;
  cursor: pointer;
}

.star-input span {
  color: var(--border);
  transition: 0.1s;
}

.star-input span.filled {
  color: var(--gold);
}

/* ---------- Toasts ---------- */
#toast-container {
  position: fixed;
  bottom: 22px;
  right: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
}

.toast {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13.5px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: 0.25s;
}

.toast-show {
  opacity: 1;
  transform: translateY(0);
}

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

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

/* ---------- misc ---------- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

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

.divider {
  height: 1px;
  background: var(--border);
  margin: 22px 0;
}

.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  cursor: pointer;
  flex-shrink: 0;
}

.toggle.on {
  background: var(--gold);
}

.toggle .knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--text);
  transition: 0.2s;
}

.toggle.on .knob {
  transform: translateX(20px);
  background: #1a1206;
}

.feed-card {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 12px;
    background: #0c1220;
    color:#eef2fb;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }

  .eyebrow {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: #eef2fb;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
  }

  .feed-card h1 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    color: #eef2fb;
  }

  .content-wrapper {
    position: relative;
  }

  /* Text Container */
  .muted {
    color: #eef2fb;
    line-height: 1.6;
    margin-bottom: 0;

    /* Line Clamp-এর জন্য প্রয়োজনীয় সমস্ত প্রপার্টি (যাতে কোনো ওয়ার্নিং না আসে) */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    line-clamp: 3; /* Standard property */
    overflow: hidden;
    transition: all 0.3s ease;
  }

  .muted p {
    margin: 0 0 12px 0;
  }

  .muted p:last-child {
    margin-bottom: 0;
  }

  /* Hidden Checkbox Controller */
  .read-more-state {
    display: none;
  }

  /* Read More Button Styling */
  .read-more-trigger {
    display: inline-block;
    margin-top: 10px;
    color: #eef2fb;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    user-select: none;
  }

  .read-more-trigger:hover {
    text-decoration: underline;
  }

  /* Checkbox Checked (Expanded State) */
  .read-more-state:checked ~ .muted {
    display: block; /* Expand করার পর box-model তুলে দেওয়া হলো */
    -webkit-line-clamp: initial;
    line-clamp: initial;
    overflow: visible;
  }

  /* Button Text Toggle */
  .read-more-state:checked ~ .read-more-trigger::before {
    content: '▲';
  }

  .read-more-state:not(:checked) ~ .read-more-trigger::before {
    content: '▼';
  }

@media (max-width: 560px) {
  .topbar {
    padding: 14px 16px;
  }

  main.container {
    padding: 22px 14px 70px;
  }

  .local-video-wrap {
    width: 100px;
    height: 140px;
    bottom: 96px;
    right: 14px;
  }
}