/* ============================================================
   jemput.app — Design System  ·  v2
   Elegant · calm · mobile-first
   Palette derived from logo v3 (navy · violet · amber)
   NOTE: every class & CSS variable name here is depended on by
   the HTML/JS. Names are preserved; only the styling is elevated.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  /* Brand — taken straight from the logo */
  --navy:    #1a2744;
  --navy-l:  #2a3c66;
  --navy-d:  #131e36;
  --purple:  #7c3aed;
  --purple-l:#8b5cf6;
  --indigo:  #6366f1;
  --orange:  #f59e0b;
  --orange-l:#fbbf24;

  /* Semantic */
  --success: #10b981;
  --danger:  #ef4444;
  --danger-l:#fca5a5;
  --info:    #3b82f6;

  /* Neutrals */
  --bg:      #eef2f9;
  --bg-2:    #f6f8fc;
  --surface: #ffffff;
  --border:  #e4e9f2;
  --border-strong: #d4dbe8;
  --text:    #14213d;
  --muted:   #647089;
  --subtle:  #94a0b8;

  /* Brand gradients (the logo's ring runs indigo → violet) */
  --grad-brand:  linear-gradient(135deg, #6366f1 0%, #7c3aed 55%, #8b5cf6 100%);
  --grad-navy:   linear-gradient(135deg, #243a66 0%, #1a2744 100%);
  --grad-amber:  linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  --grad-surface:linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);

  /* Radii */
  --r-sm:   10px;
  --r-md:   14px;
  --r-lg:   18px;
  --r-xl:   24px;
  --r-pill: 999px;

  /* Soft, layered shadows */
  --sh-sm: 0 1px 2px rgba(20,33,61,.05), 0 1px 3px rgba(20,33,61,.06);
  --sh-md: 0 4px 12px rgba(20,33,61,.07), 0 2px 4px rgba(20,33,61,.05);
  --sh-lg: 0 14px 30px -8px rgba(20,33,61,.16);
  --sh-xl: 0 26px 56px -16px rgba(20,33,61,.26);

  /* Colored CTA shadows */
  --sh-navy:   0 10px 22px -8px rgba(26,39,68,.55);
  --sh-purple: 0 10px 22px -8px rgba(124,58,237,.5);
  --sh-amber:  0 10px 22px -8px rgba(245,158,11,.45);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --trans: all .2s cubic-bezier(.4, 0, .2, 1);

  /* Mobile safe areas (notch / home indicator) */
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);

  color-scheme: light;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img  { max-width: 100%; display: block; }
a    { color: var(--purple); text-decoration: none; transition: var(--trans); }
a:hover { color: var(--purple-l); text-decoration: none; }
button { cursor: pointer; font-family: inherit; -webkit-tap-highlight-color: transparent; }
input, select, textarea { font-family: inherit; }
::selection { background: rgba(124,58,237,.18); }

/* ── Typography ─────────────────────────────────────────── */
h1 { font-size: clamp(1.55rem, 5vw, 2.05rem); font-weight: 800; letter-spacing: -.03em; color: var(--text); }
h2 { font-size: 1.25rem; font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 1rem;    font-weight: 700; letter-spacing: -.01em; }
p  { color: var(--muted); font-size: .92rem; }

/* ── Layout helpers ─────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm       { gap: .5rem; }
.gap-md       { gap: 1rem; }
.w-full       { width: 100%; }
.mt-sm        { margin-top: .5rem; }
.mt-md        { margin-top: 1rem; }
.text-center  { text-align: center; }
.text-muted   { color: var(--muted); font-size: .85rem; }
.text-sm      { font-size: .85rem; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .72rem 1.4rem; border: none; border-radius: var(--r-md);
  font-size: .92rem; font-weight: 600; line-height: 1;
  transition: var(--trans); white-space: nowrap; user-select: none;
  letter-spacing: .01em;
}
.btn:active:not([disabled]) { transform: scale(.97); }
.btn[disabled], .btn.disabled { opacity: .5; cursor: not-allowed; pointer-events: none; box-shadow: none; }

.btn-primary  { background: var(--grad-navy);   color: #fff; box-shadow: var(--sh-navy); }
.btn-primary:hover  { filter: brightness(1.08); box-shadow: var(--sh-navy), var(--sh-md); }

.btn-purple   { background: var(--grad-brand); color: #fff; box-shadow: var(--sh-purple); }
.btn-purple:hover   { filter: brightness(1.06); }

.btn-warning  { background: var(--grad-amber); color: #fff; box-shadow: var(--sh-amber); }
.btn-warning:hover  { filter: brightness(1.05); }

.btn-danger   { background: var(--danger);  color: #fff; box-shadow: 0 8px 18px -8px rgba(239,68,68,.5); }
.btn-danger:hover   { background: #dc2626; }

.btn-success  { background: var(--success); color: #fff; }

.btn-ghost    { background: var(--surface); color: var(--navy); border: 1.5px solid var(--border-strong); }
.btn-ghost:hover    { background: var(--bg-2); border-color: var(--subtle); }

.btn-full   { width: 100%; }
.btn-pill   { border-radius: var(--r-pill); padding: .85rem 1.8rem; }
.btn-lg     { padding: 1.05rem 2rem; font-size: 1rem; }
.btn-sm     { padding: .45rem .85rem; font-size: .8rem; border-radius: var(--r-sm); }
.btn-icon   {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: none; padding: 0; width: 38px; height: 38px;
  border-radius: var(--r-sm); color: var(--muted); font-size: 1.05rem; line-height: 1; transition: var(--trans);
}
.btn-icon:hover { background: var(--bg); color: var(--text); }
.btn-icon.danger:hover { background: #fee2e2; color: var(--danger); }

/* Spinner inside button */
.btn-spinner { display: inline-block; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Inputs ─────────────────────────────────────────────── */
.form-group { margin-bottom: 1.05rem; }
.form-label { display: block; font-size: .78rem; font-weight: 600; color: var(--muted); margin-bottom: .4rem; letter-spacing: .03em; text-transform: uppercase; }

.input-wrapper { position: relative; }
.input-wrapper input,
.input-wrapper select,
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: .9rem 1rem; background: var(--surface);
  border: 1.5px solid var(--border-strong); border-radius: var(--r-md);
  font-size: 1rem;            /* 16px — prevents iOS focus zoom */
  color: var(--text); outline: none; transition: var(--trans);
  -webkit-appearance: none; appearance: none;
}
.input-wrapper input::placeholder,
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--subtle); }
.input-wrapper input:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--purple); box-shadow: 0 0 0 4px rgba(124,58,237,.13);
}
.input-wrapper .toggle-password {
  position: absolute; right: .6rem; top: 50%; transform: translateY(-50%);
  background: none; border: none; padding: .45rem; color: var(--muted);
  font-size: 1rem; line-height: 1; border-radius: var(--r-sm);
}
.input-wrapper .toggle-password:hover { color: var(--text); }
.input-wrapper input { padding-right: 3rem; }
.form-group textarea { resize: vertical; min-height: 84px; }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--grad-surface); border-radius: var(--r-lg);
  box-shadow: var(--sh-sm); border: 1px solid var(--border);
  overflow: hidden;
}
.card-body { padding: 1.35rem; }
.card-header {
  padding: 1rem 1.35rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .3rem .72rem; border-radius: var(--r-pill);
  font-size: .74rem; font-weight: 600; letter-spacing: .01em; white-space: nowrap;
}
.badge-idle    { background: #eef1f7; color: var(--muted); }
.badge-waiting { background: #fef3c7; color: #92400e; }
.badge-called  { background: #dbeafe; color: #1e40af; }
.badge-done    { background: #d1fae5; color: #065f46; }
.badge-error   { background: #fee2e2; color: #991b1b; }
.badge-priority{ background: #fff1e0; color: #9a3412; }

/* ── Alerts ─────────────────────────────────────────────── */
.alert {
  padding: .8rem 1rem; border-radius: var(--r-md); font-size: .875rem;
  font-weight: 500; margin-bottom: 1rem; display: flex; align-items: flex-start; gap: .5rem;
  line-height: 1.45;
}
.alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

/* ── Modal ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(19,30,54,.5); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 1rem;
  opacity: 0; pointer-events: none; transition: opacity .22s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface); border-radius: var(--r-xl);
  width: 100%; max-width: 460px; box-shadow: var(--sh-xl);
  transform: scale(.96) translateY(12px); transition: transform .24s cubic-bezier(.34,1.2,.46,1);
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header {
  padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h2 { font-size: 1.05rem; }
.modal-body    { padding: 1.5rem; }
.modal-footer  { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; gap: .75rem; justify-content: flex-end; }

/* ── Tabs ───────────────────────────────────────────────── */
.tabs { display: flex; gap: .25rem; background: var(--bg); padding: .3rem; border-radius: var(--r-lg); border: 1px solid var(--border); }
.tab  {
  flex: 1; padding: .65rem 1rem; text-align: center; border-radius: var(--r-md);
  font-size: .85rem; font-weight: 600; color: var(--muted); border: none;
  background: transparent; cursor: pointer; transition: var(--trans);
}
.tab:hover { color: var(--text); }
.tab.active   { background: var(--surface); color: var(--navy); box-shadow: var(--sh-sm); }
.tab-panel    { display: none; animation: fadeIn .25s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ── Countdown ring / text ──────────────────────────────── */
.countdown-wrap {
  display: flex; flex-direction: column; align-items: center;
  gap: .25rem; padding: .5rem 0;
}
.countdown-num { font-size: 1.8rem; font-weight: 800; color: var(--purple); line-height: 1; }
.countdown-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }

/* ── Divider ────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

/* ── Toast ──────────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: calc(1.5rem + var(--safe-b)); left: 50%; transform: translateX(-50%);
  z-index: 9999; display: flex; flex-direction: column; gap: .5rem; width: min(360px, 92vw);
}
.toast {
  padding: .9rem 1.15rem; border-radius: var(--r-md); box-shadow: var(--sh-lg);
  font-size: .875rem; font-weight: 600; color: #fff;
  animation: slideUp .28s cubic-bezier(.34,1.2,.46,1); pointer-events: none;
}
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: var(--info); }
@keyframes slideUp { from { opacity:0; transform: translateY(14px); } to { opacity:1; transform:none; } }

/* ── Table ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--sh-sm); }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th { background: var(--bg-2); padding: .75rem 1rem; text-align: left; font-size: .72rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: .85rem 1rem; border-bottom: 1px solid var(--border); color: var(--text); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f7f9fd; }

/* ── Toggle switch ──────────────────────────────────────── */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute; inset: 0; background: var(--border-strong); border-radius: var(--r-pill);
  transition: var(--trans); cursor: pointer;
}
.switch-slider::before {
  content: ''; position: absolute; height: 18px; width: 18px; left: 3px; bottom: 3px;
  background: #fff; border-radius: 50%; transition: var(--trans); box-shadow: var(--sh-sm);
}
.switch input:checked + .switch-slider { background: var(--purple); }
.switch input:checked + .switch-slider::before { transform: translateX(20px); }

/* ============================================================
   AUTH PAGES
   ============================================================ */
.auth-body {
  min-height: 100vh; min-height: 100dvh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(1.5rem + var(--safe-t)) 1.25rem calc(1.5rem + var(--safe-b));
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(124,58,237,.12) 0%, transparent 55%),
    radial-gradient(100% 70% at 100% 110%, rgba(245,158,11,.08) 0%, transparent 50%),
    linear-gradient(160deg, #eef1fb 0%, #f4f6fc 55%, #efeaff 100%);
}
.auth-container { width: 100%; max-width: 430px; }
.auth-card {
  position: relative;
  background: var(--surface); border-radius: var(--r-xl);
  box-shadow: var(--sh-xl); padding: 2.5rem 2rem;
  border: 1px solid rgba(255,255,255,.7);
  overflow: hidden;
}
.auth-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--grad-brand);
}

.auth-logo { text-align: center; margin-bottom: 1.85rem; }
.auth-logo .logo-img {
  height: 96px; width: auto; margin: 0 auto .5rem; object-fit: contain;
}
.tagline { font-size: .9rem; font-weight: 600; color: var(--purple); letter-spacing: .04em; }

.auth-form { display: flex; flex-direction: column; gap: 0; }
.auth-form .form-group { margin-bottom: .95rem; }

.auth-links {
  display: flex; align-items: center; justify-content: center; gap: .75rem;
  margin-top: 1.6rem; font-size: .85rem; color: var(--muted); flex-wrap: wrap;
}
.auth-links a { color: var(--purple); font-weight: 600; }
.auth-links a:hover { text-decoration: underline; }

/* ============================================================
   APP HEADER (shared by dashboard + admin)
   ============================================================ */
.app-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.82); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--border);
  padding-top: var(--safe-t);
}
.app-header-inner {
  max-width: 800px; margin: 0 auto; padding: .7rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
}
.header-logo { height: 40px; width: auto; object-fit: contain; }
.header-user { font-size: .82rem; color: var(--muted); font-weight: 600; }

/* ============================================================
   PARENT DASHBOARD
   ============================================================ */
.dashboard-main {
  max-width: 600px; margin: 0 auto;
  padding: 1.35rem 1.25rem calc(2rem + var(--safe-b));
}

/* Add-student call-to-action */
.add-student-toggle { margin-bottom: 1.25rem; }
.add-student-toggle #toggleAddBtn { box-shadow: var(--sh-purple); }

/* Student card */
.student-card {
  position: relative;
  background: var(--grad-surface); border-radius: var(--r-lg);
  border: 1px solid var(--border); box-shadow: var(--sh-sm);
  margin-bottom: 1.1rem; overflow: hidden; transition: var(--trans);
}
.student-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--grad-brand); opacity: .9;
}

.student-card-top {
  padding: 1.1rem 1.25rem 1.1rem 1.4rem; display: flex; align-items: center; justify-content: space-between; gap: .75rem;
}
.student-info { display: flex; flex-direction: column; gap: .35rem; min-width: 0; }
.student-name { font-size: 1.12rem; font-weight: 800; color: var(--navy); letter-spacing: -.01em; line-height: 1.2; }
.student-class-tag {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: .3rem;
  background: rgba(124,58,237,.08); color: var(--purple);
  font-size: .74rem; font-weight: 700; padding: .2rem .6rem; border-radius: var(--r-pill);
  border: 1px solid rgba(124,58,237,.16);
}
.student-card-actions { display: flex; gap: .15rem; align-items: center; flex-shrink: 0; }

.student-card-body { padding: 0 1.25rem 1.25rem 1.4rem; }

.call-buttons { display: flex; flex-direction: row; gap: .65rem; margin-top: .25rem; }
.call-buttons .btn { flex: 1; min-width: 0; }
.btn-call-normal,
.btn-call-priority,
.btn-recall {
  min-height: 56px; font-size: 1.02rem; font-weight: 800; letter-spacing: .02em;
}
.btn-call-normal   { background: var(--grad-navy);  color: #fff; box-shadow: var(--sh-navy); }
.btn-call-normal:hover { filter: brightness(1.1); }
.btn-call-priority { background: var(--grad-amber); color: #fff; box-shadow: var(--sh-amber); }
.btn-call-priority:hover { filter: brightness(1.05); }
.btn-recall  { background: var(--grad-brand); color: #fff; box-shadow: var(--sh-purple); }
.btn-recall:hover { filter: brightness(1.07); }

.status-row { display: flex; align-items: center; gap: .6rem; margin-bottom: .65rem; flex-wrap: wrap; }

.countdown-bar-wrap { margin: .65rem 0; }
.countdown-bar-bg { background: var(--bg); border-radius: var(--r-pill); height: 8px; overflow: hidden; border: 1px solid var(--border); }
.countdown-bar-fill { height: 100%; border-radius: var(--r-pill); background: var(--purple); transition: width .9s linear; }
.countdown-text { font-size: .78rem; color: var(--muted); text-align: right; margin-top: .4rem; }
.countdown-text strong { color: var(--text); font-variant-numeric: tabular-nums; }

/* Empty state */
.empty-state {
  text-align: center; padding: 3.5rem 1.5rem;
  background: var(--grad-surface); border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state h3 { color: var(--navy); }
.empty-state p { color: var(--muted); }

/* Add student collapsible */
.collapsible { display: none; margin-top: .75rem; }
.collapsible.open { display: block; animation: fadeIn .25s ease; }

/* ============================================================
   ADMIN DASHBOARD
   ============================================================ */
.admin-main {
  max-width: 960px; margin: 0 auto;
  padding: 1.5rem 1.25rem calc(2rem + var(--safe-b));
}

.admin-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 700px) { .admin-grid { grid-template-columns: 1fr 1fr; } }

.panic-btn {
  background: #fff5f5; color: var(--danger); border: 1.5px solid var(--danger-l);
  font-weight: 800; font-size: .95rem; letter-spacing: .02em; border-radius: var(--r-md);
  padding: .95rem 1.5rem; width: 100%; transition: var(--trans);
}
.panic-btn:hover { background: var(--danger); color: #fff; box-shadow: 0 10px 24px -8px rgba(239,68,68,.55); border-color: var(--danger); }
.panic-btn:active { transform: scale(.99); }

.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1rem; flex-wrap: wrap; gap: .5rem;
}
.section-header h2 { font-size: 1.02rem; color: var(--navy); }

.phone-list { display: flex; flex-direction: column; gap: .5rem; }
.phone-item {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  padding: .75rem 1rem; background: var(--surface); border-radius: var(--r-md); border: 1px solid var(--border);
  transition: var(--trans);
}
.phone-item:hover { border-color: var(--border-strong); box-shadow: var(--sh-sm); }
.phone-item-info { display: flex; flex-direction: column; gap: .15rem; min-width: 0; }
.phone-num { font-weight: 700; font-size: .9rem; }
.phone-note { font-size: .75rem; color: var(--muted); }

/* CSV upload zone */
.upload-zone {
  border: 2px dashed var(--border-strong); border-radius: var(--r-md);
  padding: 1.75rem 1.5rem; text-align: center; cursor: pointer;
  transition: var(--trans); background: var(--bg-2);
}
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--purple); background: #f5f3ff; }
.upload-zone input { display: none; }
.upload-zone p { color: var(--muted); font-size: .85rem; pointer-events: none; }
.upload-zone strong { color: var(--purple); pointer-events: none; }

/* Queue table row priority highlight */
.priority-row td { background: #fff8ee !important; }
.priority-row td:first-child { border-left: 3px solid var(--orange); }

/* ── Reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ── Hover only on devices that truly hover (not touch) ──── */
@media (hover: hover) {
  .student-card:hover { box-shadow: var(--sh-md); transform: translateY(-1px); }
}

/* ── Small screens ──────────────────────────────────────── */
@media (max-width: 600px) {
  .admin-main { padding: 1.1rem 1rem calc(1.5rem + var(--safe-b)); }
  .auth-card  { padding: 2rem 1.35rem; }
  .modal-footer { flex-direction: column-reverse; }
  .modal-footer .btn { width: 100%; }
  .tab { padding: .6rem .5rem; font-size: .8rem; }
}