/* ============================================================
   GO CAMTY ACADEMY — Student Panel CSS
   Light theme · Brand colors · Clean & modern
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --s-navy:       #2F5080;
  --s-navy-light: #3d6496;
  --s-green:      #27ae60;
  --s-green-lt:   #e8f8ef;
  --s-red:        #e30b13;
  --s-gold:       #f59e0b;
  --s-blue:       #3b82f6;
  --s-purple:     #8b5cf6;

  --s-bg:         #f4f7fb;
  --s-sidebar:    #ffffff;
  --s-card:       #ffffff;
  --s-border:     #e8ecf3;
  --s-text:       #1a2332;
  --s-muted:      #6b7a8d;

  --s-sidebar-w:  260px;
  --s-radius:     14px;
  --s-shadow:     0 2px 16px rgba(47,80,128,.08);
  --s-shadow-lg:  0 8px 32px rgba(47,80,128,.12);
}

*, *::before, *::after { box-sizing: border-box; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  color: var(--s-text);
  background: var(--s-bg);
  margin: 0;
}

/* ── Auth body ────────────────────────────────────────────── */
.student-auth-body {
  min-height: 100vh;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f4fd 50%, #f0fdf4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.student-auth-wrap { width: 100%; max-width: 440px; }
.student-auth-card {
  background: #fff;
  border-radius: 20px;
  padding: 2.5rem 2.25rem;
  box-shadow: 0 20px 60px rgba(47,80,128,.14);
  border: 1px solid var(--s-border);
}

/* ── Panel layout ─────────────────────────────────────────── */
.student-body {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.student-sidebar {
  width: var(--s-sidebar-w);
  background: var(--s-sidebar);
  border-right: 1px solid var(--s-border);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  transition: transform .25s ease;
}

.ss-header {
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--s-border);
  flex-shrink: 0;
}
.ss-brand { text-decoration: none; display: flex; align-items: center; }

.ss-user-card {
  margin: 1rem;
  background: linear-gradient(135deg, var(--s-navy) 0%, var(--s-navy-light) 100%);
  border-radius: 12px;
  padding: 1rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.ss-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.4);
  object-fit: cover;
  flex-shrink: 0;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}
.ss-user-name { font-weight: 700; font-size: .9rem; line-height: 1.2; }
.ss-user-plan { font-size: .72rem; color: rgba(255,255,255,.7); }
.ss-plan-badge {
  font-size: .65rem;
  font-weight: 700;
  padding: .2rem .55rem;
  border-radius: 50px;
  background: rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  margin-top: .2rem;
  display: inline-block;
}

/* Nav */
.ss-nav { flex: 1; padding: .75rem 0; }
.ss-nav-section {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--s-muted);
  padding: .75rem 1.5rem .25rem;
}
.ss-nav-link {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .6rem 1.5rem;
  color: var(--s-muted);
  font-weight: 500;
  font-size: .875rem;
  text-decoration: none;
  border-radius: 0;
  transition: all .2s;
  position: relative;
  margin: .05rem .75rem;
  border-radius: 10px;
}
.ss-nav-link i { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }
.ss-nav-link:hover { background: #f0f4ff; color: var(--s-navy); }
.ss-nav-link.active {
  background: linear-gradient(135deg, #eef3fb, #e8f0fa);
  color: var(--s-navy);
  font-weight: 600;
}
.ss-nav-link.active::before {
  content: '';
  position: absolute;
  left: -4px; top: 20%; bottom: 20%;
  width: 4px;
  background: var(--s-navy);
  border-radius: 0 3px 3px 0;
}
.ss-nav-badge {
  margin-left: auto;
  background: var(--s-red);
  color: #fff;
  font-size: .62rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 50px;
  min-width: 18px;
  text-align: center;
}

/* CTA (no plan) */
.ss-cta-box {
  margin: 1rem;
  background: linear-gradient(135deg, var(--s-green) 0%, #1e9e52 100%);
  border-radius: 14px;
  padding: 1.25rem;
  color: #fff;
}
.ss-cta-title { font-weight: 800; font-size: .9rem; margin-bottom: .35rem; }
.ss-cta-body  { font-size: .78rem; color: rgba(255,255,255,.85); margin-bottom: .85rem; line-height: 1.5; }
.ss-cta-btn {
  display: block;
  background: #fff;
  color: var(--s-green);
  font-weight: 700;
  font-size: .8rem;
  text-align: center;
  padding: .5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all .2s;
}
.ss-cta-btn:hover { background: #f0fdf4; color: var(--s-green); }

/* Footer */
.ss-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--s-border);
  flex-shrink: 0;
}
.ss-logout {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--s-muted);
  font-size: .82rem;
  text-decoration: none;
  transition: color .2s;
}
.ss-logout:hover { color: var(--s-red); }

/* ── Main content ─────────────────────────────────────────── */
.student-main {
  margin-left: var(--s-sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.student-topbar {
  height: 64px;
  background: var(--s-sidebar);
  border-bottom: 1px solid var(--s-border);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  gap: 1rem;
  position: sticky; top: 0; z-index: 100;
}
.st-page-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--s-text);
  margin-left: .5rem;
}
.st-search {
  display: flex;
  align-items: center;
  background: var(--s-bg);
  border: 1px solid var(--s-border);
  border-radius: 10px;
  padding: .4rem 1rem;
  gap: .5rem;
  flex: 1;
  max-width: 360px;
}
.st-search input {
  background: none;
  border: none;
  outline: none;
  font-size: .875rem;
  color: var(--s-text);
  width: 100%;
  font-family: inherit;
}
.st-search input::placeholder { color: var(--s-muted); }
.st-topbar-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--s-bg);
  border: 1px solid var(--s-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--s-muted);
  text-decoration: none;
  font-size: 1rem;
  transition: all .15s;
  position: relative;
  flex-shrink: 0;
  cursor: pointer;
}
.st-topbar-icon:hover { background: #e8f0fa; color: var(--s-navy); border-color: var(--s-navy); }
.st-notif-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  background: var(--s-red);
  border-radius: 50%;
  border: 2px solid #fff;
}
.ss-toggle { display: none; background: none; border: none; font-size: 1.3rem; color: var(--s-muted); cursor: pointer; }

/* ── Content area ─────────────────────────────────────────── */
.student-content { padding: 2rem; flex: 1; }

/* ── Cards ────────────────────────────────────────────────── */
.s-card {
  background: var(--s-card);
  border: 1px solid var(--s-border);
  border-radius: var(--s-radius);
  box-shadow: var(--s-shadow);
  overflow: hidden;
}
.s-card-header {
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid var(--s-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.s-card-title { font-weight: 700; font-size: .9rem; margin: 0; }
.s-card-body  { padding: 1.4rem; }

/* ── Stat cards ───────────────────────────────────────────── */
.s-stat-card {
  background: var(--s-card);
  border: 1px solid var(--s-border);
  border-radius: var(--s-radius);
  padding: 1.4rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  box-shadow: var(--s-shadow);
  transition: transform .2s, box-shadow .2s;
}
.s-stat-card:hover { transform: translateY(-2px); box-shadow: var(--s-shadow-lg); }
.s-stat-icon {
  width: 50px; height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.s-stat-val { font-size: 1.7rem; font-weight: 800; line-height: 1; color: var(--s-text); }
.s-stat-lbl { font-size: .75rem; color: var(--s-muted); font-weight: 500; margin-top: .3rem; }
.s-stat-trend { font-size: .72rem; font-weight: 600; margin-top: .35rem; }
.s-stat-trend.up   { color: var(--s-green); }
.s-stat-trend.down { color: var(--s-red); }

/* ── Welcome banner ───────────────────────────────────────── */
.s-welcome-banner {
  background: linear-gradient(135deg, var(--s-navy) 0%, #3d6496 60%, #4a7abf 100%);
  border-radius: var(--s-radius);
  padding: 2rem 2.5rem;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.s-welcome-banner::before {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  pointer-events: none;
}
.s-welcome-banner::after {
  content: '';
  position: absolute;
  right: 80px; bottom: -80px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
  pointer-events: none;
}
.s-welcome-title { font-size: 1.5rem; font-weight: 800; margin-bottom: .35rem; }
.s-welcome-sub   { color: rgba(255,255,255,.8); font-size: .9rem; }
.s-welcome-cta {
  background: rgba(255,255,255,.15);
  border: 1.5px solid rgba(255,255,255,.3);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  padding: .65rem 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
  transition: all .2s;
}
.s-welcome-cta:hover { background: rgba(255,255,255,.25); color: #fff; }

/* ── Progress ring ────────────────────────────────────────── */
.s-progress-ring-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.s-progress-ring { transform: rotate(-90deg); }
.s-ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.s-ring-val  { font-size: 1.3rem; font-weight: 800; line-height: 1; }
.s-ring-sub  { font-size: .65rem; color: var(--s-muted); text-transform: uppercase; letter-spacing: .05em; }

/* ── Skill bars ───────────────────────────────────────────── */
.s-skill-row { margin-bottom: .85rem; }
.s-skill-label { display: flex; justify-content: space-between; font-size: .8rem; margin-bottom: .35rem; }
.s-skill-label span:first-child { font-weight: 600; color: var(--s-text); }
.s-skill-label span:last-child  { color: var(--s-muted); font-weight: 500; }
.s-skill-bar { height: 8px; background: #eef2f8; border-radius: 50px; overflow: hidden; }
.s-skill-fill { height: 100%; border-radius: 50px; transition: width 1s ease; }

/* ── CEFR badge ───────────────────────────────────────────── */
.s-cefr-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 14px;
  font-size: 1.1rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--s-navy), var(--s-navy-light));
  color: #fff;
}

/* ── Tutor card ───────────────────────────────────────────── */
.s-tutor-card {
  background: var(--s-card);
  border: 1px solid var(--s-border);
  border-radius: var(--s-radius);
  overflow: hidden;
  transition: all .25s;
  box-shadow: var(--s-shadow);
}
.s-tutor-card:hover { transform: translateY(-4px); box-shadow: var(--s-shadow-lg); border-color: var(--s-navy); }
.s-tutor-photo {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--s-border);
}
.s-tutor-avatar-placeholder {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--s-navy), var(--s-navy-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; font-weight: 700; color: #fff;
  border: 3px solid var(--s-border);
}
.s-prog-badge {
  display: inline-flex;
  align-items: center;
  padding: .25rem .6rem;
  border-radius: 50px;
  font-size: .7rem;
  font-weight: 700;
  gap: .3rem;
}
.s-prog-standard { background: #eef3fb; color: var(--s-navy); }
.s-prog-kids     { background: #fef3c7; color: #92400e; }
.s-prog-pro      { background: #d1fae5; color: #065f46; }

/* ── Lesson card ──────────────────────────────────────────── */
.s-lesson-card {
  background: var(--s-card);
  border: 1px solid var(--s-border);
  border-radius: var(--s-radius);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all .2s;
}
.s-lesson-card:hover { border-color: var(--s-navy); box-shadow: var(--s-shadow); }
.s-lesson-date {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--s-bg);
  border: 1px solid var(--s-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.s-lesson-day   { font-size: 1.2rem; font-weight: 800; line-height: 1; color: var(--s-navy); }
.s-lesson-month { font-size: .62rem; color: var(--s-muted); text-transform: uppercase; letter-spacing: .05em; }
.s-lesson-upcoming .s-lesson-date { background: #eef3fb; border-color: #c7d7f0; }

/* ── Tag chip ─────────────────────────────────────────────── */
.s-tag {
  background: var(--s-bg);
  border: 1px solid var(--s-border);
  color: var(--s-muted);
  padding: .25rem .6rem;
  border-radius: 50px;
  font-size: .72rem;
  font-weight: 500;
}

/* ── Alert ────────────────────────────────────────────────── */
.s-alert { display: flex; align-items: center; gap: .75rem; padding: .85rem 1rem; border-radius: 10px; font-size: .875rem; font-weight: 500; }
.s-alert-ok  { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.s-alert-err { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-student-primary {
  background: var(--s-navy);
  border-color: var(--s-navy);
  color: #fff;
  font-weight: 700;
  border-radius: 10px;
  transition: all .2s;
}
.btn-student-primary:hover { background: #1e3560; border-color: #1e3560; color: #fff; transform: translateY(-1px); }
.btn-student-green {
  background: var(--s-green);
  border-color: var(--s-green);
  color: #fff;
  font-weight: 700;
  border-radius: 10px;
  transition: all .2s;
}
.btn-student-green:hover { background: #1e9e52; border-color: #1e9e52; color: #fff; }

/* ── Settings tabs ────────────────────────────────────────── */
.s-settings-nav { display: flex; flex-direction: column; gap: .2rem; }
.s-settings-link {
  display: flex; align-items: center; gap: .75rem;
  padding: .7rem 1rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--s-muted);
  font-weight: 500;
  font-size: .875rem;
  transition: all .15s;
}
.s-settings-link:hover { background: var(--s-bg); color: var(--s-navy); }
.s-settings-link.active { background: #eef3fb; color: var(--s-navy); font-weight: 700; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 991px) {
  .student-sidebar { transform: translateX(-100%); }
  .student-sidebar.open { transform: translateX(0); box-shadow: var(--s-shadow-lg); }
  .student-main { margin-left: 0; }
  .ss-toggle { display: block; }
  .student-topbar { padding: 0 1rem; }
  .student-content { padding: 1.25rem; }
}
@media (max-width: 576px) {
  .s-welcome-banner { flex-direction: column; text-align: center; }
  .s-welcome-title { font-size: 1.2rem; }
  .st-search { display: none; }
}

/* ── Teaching language switcher button ────────────────────── */
.st-teach-lang-btn {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .35rem .8rem;
  background: var(--s-bg);
  border: 1.5px solid var(--s-border);
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--s-text);
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.st-teach-lang-btn:hover {
  border-color: var(--s-navy);
  background: #eef3fb;
  color: var(--s-navy);
}
.st-teach-lang-label {
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Teaching lang offcanvas ──────────────────────────────── */
.teach-lang-offcanvas { border-left: none; box-shadow: var(--s-shadow-lg); }

.tl-lang-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1rem;
  border: 2px solid var(--s-border);
  border-radius: 14px;
  background: var(--s-card);
  margin-bottom: .6rem;
  cursor: pointer;
  transition: all .2s;
}
.tl-lang-card:hover  { border-color: var(--s-navy); background: #f8fbff; }
.tl-lang-card.selected { border-color: var(--s-green); background: #f0fdf4; }
.tl-lang-card.no-plan  { opacity: .7; }
.tl-flag-wrap { flex-shrink: 0; }
.tl-lang-name   { font-weight: 700; font-size: .95rem; color: var(--s-text); }
.tl-lang-status { font-size: .75rem; margin-top: .15rem; }
.tl-has-plan    { color: var(--s-green); }
.tl-no-plan     { color: var(--s-muted); }
.tl-check       { font-size: 1.1rem; flex-shrink: 0; }

/* ── Subscription cards ───────────────────────────────────── */
.sub-list-card {
  background: var(--s-card);
  border: 1.5px solid var(--s-border);
  border-radius: 14px;
  padding: 1.4rem;
  transition: all .2s;
  text-decoration: none;
  display: block;
  color: var(--s-text);
}
.sub-list-card:hover { border-color: var(--s-navy); box-shadow: var(--s-shadow); color: var(--s-text); transform: translateY(-2px); }
.sub-list-card.active-sub  { border-color: var(--s-green); }
.sub-list-card.expired-sub { opacity: .7; }
.sub-status-badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .3rem .75rem; border-radius: 50px;
  font-size: .72rem; font-weight: 700;
}
.sub-usage-bar { height: 8px; background: #eef2f8; border-radius: 50px; overflow: hidden; margin-top: .5rem; }
.sub-usage-fill { height: 100%; border-radius: 50px; background: var(--s-navy); transition: width .8s ease; }

/* ── Payment history ──────────────────────────────────────── */
.pay-row {
  display: grid;
  grid-template-columns: 1fr 2fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1.25rem;
  border-bottom: 1px solid var(--s-border);
  font-size: .875rem;
}
.pay-row:last-child { border-bottom: none; }
.pay-status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: .4rem; }

/* ── Settings nav ───────────────────────────────────────────── */
.s-settings-nav { display:flex;flex-direction:column;gap:.1rem; }
.s-settings-nav-label {
  font-size:.62rem;text-transform:uppercase;letter-spacing:.09em;
  font-weight:800;color:var(--s-muted);
  padding:.6rem .5rem .2rem;margin-top:.2rem;
}
.s-settings-nav-label:first-child { margin-top:0; }
.s-settings-link {
  display:flex;align-items:center;gap:.6rem;
  padding:.55rem .75rem;border-radius:9px;
  color:var(--s-navy);text-decoration:none;
  font-size:.85rem;font-weight:600;transition:background .15s,color .15s;
}
.s-settings-link i { font-size:.95rem;width:18px;flex-shrink:0; }
.s-settings-link:hover  { background:var(--s-bg);color:var(--s-navy); }
.s-settings-link.active { background:#eef3fb;color:var(--s-navy);font-weight:700; }