/* ============================================================
   Token Sorter — by MD ALAMIN | techbd.com.bd
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;600;700&display=swap');

/* ── THEME VARIABLES ──────────────────────────────────────── */
:root {
  /* Dark (default) */
  --bg:          #0d1117;
  --bg2:         #161b27;
  --bg3:         #1c2236;
  --surface:     #1e2740;
  --border:      #2a3350;
  --accent:      #f6c90e;
  --accent2:     #ff6b35;
  --blue:        #4f8ef7;
  --green:       #22c55e;
  --red:         #ef4444;
  --purple:      #a855f7;
  --text:        #e8ecf4;
  --text2:       #8b9bbf;
  --text3:       #4a5578;
  --mono:        'JetBrains Mono', monospace;
  --font:        'Inter', sans-serif;
  --radius:      16px;
  --radius-sm:   10px;
  --radius-xs:   6px;
  --shadow:      0 8px 32px rgba(0,0,0,.5);
  --shadow-sm:   0 2px 12px rgba(0,0,0,.35);
  --glow-accent: 0 0 32px rgba(246,201,14,.18);
}

[data-theme="light"] {
  --bg:          #f4f7ff;
  --bg2:         #ffffff;
  --bg3:         #eef1fb;
  --surface:     #f0f4ff;
  --border:      #d8e0f5;
  --text:        #0f172a;
  --text2:       #3d4f7a;
  --text3:       #7b8db5;
  --shadow:      0 8px 32px rgba(79,142,247,.12);
  --shadow-sm:   0 2px 12px rgba(79,142,247,.08);
  --glow-accent: 0 0 32px rgba(246,201,14,.12);
}

/* ── RESET & BASE ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .25s ease, color .25s ease;
  line-height: 1.5;
}

/* ── TOPBAR ──────────────────────────────────────────────── */
.topbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 200;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background .25s, border-color .25s;
}
.topbar-inner {
  max-width: 740px; margin: 0 auto;
  padding: 10px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-icon {
  width: 38px; height: 38px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: var(--radius-sm); display: grid; place-items: center;
  font-size: 17px; color: #000;
  box-shadow: 0 2px 12px rgba(246,201,14,.35);
}
.brand-name { font-weight: 800; font-size: 15px; color: var(--text); line-height: 1.2; }
.brand-sub  { font-size: 10px; color: var(--text3); display: block; letter-spacing: .03em; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }

.badge-tokens {
  background: var(--bg3); border: 1px solid var(--border);
  padding: 5px 12px; border-radius: 20px;
  font-size: 12px; font-weight: 700; color: var(--accent);
  display: flex; align-items: center; gap: 5px;
  font-family: var(--mono);
}

.btn-icon {
  width: 38px; height: 38px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-xs); color: var(--text2);
  cursor: pointer; font-size: 14px;
  display: grid; place-items: center;
  transition: all .2s; flex-shrink: 0;
}
.btn-icon:hover { background: var(--surface); color: var(--text); transform: scale(1.06); }
.btn-icon.btn-danger:hover { background: rgba(239,68,68,.12); color: var(--red); border-color: var(--red); }

/* ── CONTAINER ───────────────────────────────────────────── */
.container {
  flex: 1; max-width: 740px; width: 100%;
  margin: 0 auto; padding: 24px 16px 48px;
}

/* ── CARD ────────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: background .25s, border-color .25s;
}

/* ── INPUT SECTION ───────────────────────────────────────── */
.input-section {
  display: flex; flex-direction: column; align-items: center; gap: 24px;
  padding-top: 8px;
}
.hero-icon {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 24px; display: grid; place-items: center;
  font-size: 36px; color: #000;
  box-shadow: 0 12px 40px rgba(246,201,14,.4), 0 0 0 1px rgba(246,201,14,.2);
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.hero-title {
  font-size: clamp(22px, 6vw, 30px); font-weight: 900;
  text-align: center; letter-spacing: -.02em; color: var(--text);
}
.hero-sub { color: var(--text2); text-align: center; font-size: 14px; letter-spacing: .06em; }

/* Session Prompt */
.session-prompt {
  background: rgba(79,142,247,.08);
  border: 1px solid rgba(79,142,247,.25);
  border-radius: var(--radius-sm);
  padding: 14px 16px; margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.session-prompt-icon { font-size: 20px; color: var(--blue); flex-shrink: 0; }
.session-prompt-text { flex: 1; min-width: 0; }
.session-prompt-text strong { display: block; font-size: 13px; color: var(--text); }
.session-prompt-text span { font-size: 12px; color: var(--text2); }
.session-prompt-btns { display: flex; gap: 8px; }
.btn-resume, .btn-discard {
  padding: 6px 14px; border-radius: var(--radius-xs);
  font-family: var(--font); font-size: 12px; font-weight: 600; cursor: pointer; border: 1px solid;
}
.btn-resume  { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-discard { background: transparent; color: var(--text2); border-color: var(--border); }
.btn-discard:hover { color: var(--text); border-color: var(--text3); }

/* SMS Card */
.sms-card { width: 100%; padding: 22px; }
.input-group { display: flex; flex-direction: column; gap: 8px; }
.input-group label {
  font-size: 13px; font-weight: 600; color: var(--text2);
  display: flex; align-items: center; gap: 7px;
}
.input-group label i { color: var(--accent); }
.input-group textarea {
  width: 100%; background: var(--bg3); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 14px;
  font-family: var(--mono); font-size: 12px; color: var(--text);
  resize: vertical; min-height: 150px; line-height: 1.7;
  transition: border-color .2s, box-shadow .2s;
}
.input-group textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(246,201,14,.15);
}
.input-group textarea::placeholder { color: var(--text3); font-family: var(--font); font-size: 12px; }

.warning-box {
  background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3);
  border-radius: var(--radius-xs); padding: 10px 14px;
  color: #fca5a5; font-size: 12px; margin-top: 10px;
}

.btn-start {
  width: 100%; margin-top: 16px; padding: 15px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  border: none; border-radius: var(--radius-sm);
  color: #000; font-family: var(--font); font-size: 15px; font-weight: 800;
  cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 9px;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 4px 20px rgba(246,201,14,.35);
  letter-spacing: .01em;
}
.btn-start:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(246,201,14,.5); }
.btn-start:active { transform: translateY(0); }

.info-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%;
}
.info-item {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 13px 15px;
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; font-weight: 500; color: var(--text2);
  transition: border-color .2s, background .2s;
}
.info-item:hover { border-color: var(--accent); background: var(--bg3); color: var(--text); }
.info-item i { color: var(--accent); font-size: 15px; flex-shrink: 0; }

/* ── DASHBOARD ───────────────────────────────────────────── */
.dashboard { display: flex; flex-direction: column; gap: 16px; }

/* Meter Card */
.meter-card { overflow: hidden; }
.meter-card-header {
  background: var(--surface); padding: 12px 18px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}
.provider-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 20px; border: 1px solid;
  font-size: 11px; font-weight: 800; letter-spacing: .08em;
}
.header-title { font-size: 12px; font-weight: 700; color: var(--text2); letter-spacing: .05em; text-transform: uppercase; }
.header-date { margin-left: auto; font-size: 11px; color: var(--text3); display: flex; align-items: center; gap: 5px; }

.meter-info-content {
  display: grid; grid-template-columns: 1fr 1fr;
}
.mi {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.mi:nth-child(2n) { border-right: none; }
/* remove bottom border from last 2 items (or 1 if odd) */
.mi:last-child, .mi:nth-last-child(2):nth-child(odd) { border-bottom: none; }
.mi:nth-last-child(1):nth-child(even),
.mi:nth-last-child(2):nth-child(even) { border-bottom: none; }
.mi-full { grid-column: 1 / -1; border-right: none !important; border-bottom: none !important; }

.mi-label {
  font-size: 10px; color: var(--text3); font-weight: 600;
  display: flex; align-items: center; gap: 5px;
  margin-bottom: 5px; text-transform: uppercase; letter-spacing: .05em;
}
.mi-label i { color: var(--blue); font-size: 10px; }
.mi-val { font-size: 13px; font-weight: 700; font-family: var(--mono); color: var(--text); }
.mi-val.hi { color: var(--accent); font-size: 16px; }
.mi-val.rebate-neg { color: var(--green); }
.mi-val.rebate-pos { color: var(--accent2); }
.mono-sm { font-size: 11px; letter-spacing: .04em; word-break: break-all; }

/* Progress Card */
.progress-card { padding: 16px 18px; }
.progress-header {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; font-weight: 700; color: var(--text2); margin-bottom: 10px;
}
.progress-header i { color: var(--blue); margin-right: 5px; }
.progress-count { color: var(--accent); font-family: var(--mono); font-size: 12px; }
.progress-bar-wrap {
  width: 100%; height: 9px; background: var(--bg3); border-radius: 100px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 100px; transition: width .5s cubic-bezier(.4,0,.2,1);
}

/* Sound Card */
.sound-card {
  padding: 12px 18px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap;
}
.toggle-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--text2); cursor: pointer; user-select: none;
}
.toggle-label .sound-icon { color: var(--accent); }
.toggle-label input[type="checkbox"] { display: none; }
.toggle-switch {
  width: 42px; height: 24px; flex-shrink: 0;
  background: var(--bg3); border: 1.5px solid var(--border);
  border-radius: 100px; position: relative; transition: all .2s;
}
.toggle-switch::after {
  content: ''; position: absolute;
  width: 17px; height: 17px; background: var(--text3);
  border-radius: 50%; top: 2px; left: 2px; transition: all .2s;
}
.toggle-label input:checked ~ .toggle-switch { background: var(--accent); border-color: var(--accent); }
.toggle-label input:checked ~ .toggle-switch::after { left: 21px; background: #000; }
.vol-wrap {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text3);
}
.vol-wrap input[type="range"] { accent-color: var(--accent); width: 96px; cursor: pointer; }

/* Token Display Card */
.token-display-card {
  border: 2px solid var(--accent);
  padding: 28px 22px 22px;
  text-align: center; position: relative;
  box-shadow: var(--glow-accent);
  background: var(--bg2);
}
.token-seq-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 5px 16px;
  font-size: 11px; color: var(--text2); margin-bottom: 18px;
  font-weight: 600;
}
.token-seq-badge span { color: var(--accent); font-weight: 800; font-family: var(--mono); font-size: 13px; }
.token-number {
  font-family: var(--mono);
  font-size: clamp(16px, 5.5vw, 28px);
  font-weight: 700; letter-spacing: .15em; color: var(--text);
  margin-bottom: 22px; word-break: break-all; line-height: 1.5;
}
.token-actions { display: flex; align-items: center; justify-content: center; gap: 10px; }
.btn-copy {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none; border-radius: var(--radius-sm);
  color: #000; padding: 11px 26px;
  font-family: var(--font); font-size: 14px; font-weight: 800;
  cursor: pointer; display: inline-flex; align-items: center; gap: 8px;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 4px 16px rgba(246,201,14,.3);
}
.btn-copy:hover { transform: scale(1.04); box-shadow: 0 6px 24px rgba(246,201,14,.45); }
.copy-hint { font-size: 10px; opacity: .65; font-weight: 500; }
.btn-speak {
  width: 44px; height: 44px;
  background: var(--bg3); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text2);
  font-size: 16px; cursor: pointer; display: grid; place-items: center;
  transition: all .2s;
}
.btn-speak:hover { background: rgba(246,201,14,.12); color: var(--accent); border-color: var(--accent); }
.copy-toast {
  position: absolute; top: 14px; right: 14px;
  background: var(--green); color: #fff; padding: 5px 13px;
  border-radius: 20px; font-size: 11px; font-weight: 700;
  display: none; gap: 5px; align-items: center;
}
.copy-toast.show { display: flex; }

/* Nav Buttons */
.nav-buttons { display: flex; gap: 12px; }
.nav-form { flex: 1; }
.btn-nav {
  width: 100%; padding: 14px;
  border-radius: var(--radius-sm); font-family: var(--font);
  font-size: 14px; font-weight: 700; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all .2s; border: 1.5px solid var(--border);
}
.btn-prev { background: var(--bg2); color: var(--text2); }
.btn-prev:hover:not(:disabled) { background: var(--surface); color: var(--text); border-color: var(--text3); }
.btn-next {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #000; border: none;
  box-shadow: 0 4px 20px rgba(246,201,14,.3);
}
.btn-next:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(246,201,14,.45); }
.btn-nav:disabled { opacity: .3; cursor: not-allowed; transform: none !important; }
.done-badge {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px; background: rgba(34,197,94,.1);
  border: 1.5px solid var(--green); border-radius: var(--radius-sm);
  color: var(--green); font-weight: 800; font-size: 14px;
}

/* Shortcut hints */
.shortcut-hint {
  display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; padding: 2px 0;
}
.shortcut-hint span { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--text3); }
kbd {
  background: var(--surface); border: 1px solid var(--border); border-bottom-width: 2px;
  border-radius: 4px; padding: 2px 6px;
  font-family: var(--mono); font-size: 9px; color: var(--text2);
}

/* Token Table */
.token-table-section { overflow: hidden; }
.table-header {
  padding: 13px 18px; font-size: 12px; font-weight: 700; color: var(--text2);
  letter-spacing: .05em; text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid var(--border); background: var(--surface);
}
.table-header i { color: var(--blue); }
.btn-print {
  margin-left: auto; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-xs); color: var(--text2); padding: 5px 12px;
  font-size: 11px; cursor: pointer; display: flex; align-items: center; gap: 5px;
  font-family: var(--font); font-weight: 600; transition: all .2s;
}
.btn-print:hover { background: var(--surface); color: var(--text); border-color: var(--text3); }
.table-wrap { overflow-x: auto; max-height: 340px; overflow-y: auto; }
.token-table { width: 100%; border-collapse: collapse; }
.token-table th {
  background: var(--bg3); padding: 10px 14px; text-align: left;
  font-size: 10px; color: var(--text3); letter-spacing: .06em;
  text-transform: uppercase; font-weight: 700; position: sticky; top: 0; z-index: 1;
}
.token-table td {
  padding: 10px 14px; font-size: 12px;
  border-bottom: 1px solid var(--border); color: var(--text2);
  transition: background .15s;
}
.token-table tr:last-child td { border-bottom: none; }
.token-cell { font-family: var(--mono); font-size: 12px; color: var(--text); letter-spacing: .05em; }

.clickable-row { cursor: pointer; transition: background .15s; }
.clickable-row:hover td { background: var(--bg3); }
.current-token td { background: rgba(246,201,14,.06) !important; }
.current-token .token-cell { color: var(--accent); font-weight: 700; }
.done-token td { opacity: .4; }
.done-token .token-cell { text-decoration: line-through; }

/* State dots */
.state-cell { text-align: center; width: 32px; }
.state-dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  border: 1.5px solid var(--border);
}
.state-dot[data-state="done"]    { background: var(--green);  border-color: var(--green); }
.state-dot[data-state="current"] { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 6px var(--accent); }
.state-dot[data-state="pending"] { background: transparent; }

/* ── TOAST ───────────────────────────────────────────────── */
#toastContainer {
  position: fixed; bottom: 24px; right: 16px; z-index: 9999;
  display: flex; flex-direction: column; gap: 8px; align-items: flex-end;
}
.toast {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); padding: 10px 18px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; box-shadow: var(--shadow);
  opacity: 0; transform: translateY(10px) scale(.96);
  transition: opacity .25s, transform .25s;
  max-width: 280px;
}
.toast.show { opacity: 1; transform: translateY(0) scale(1); }
.toast.hide { opacity: 0; transform: translateY(10px) scale(.96); }

/* ── FOOTER ──────────────────────────────────────────────── */
.site-footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 22px 16px; margin-top: auto;
  transition: background .25s, border-color .25s;
}
.footer-inner {
  max-width: 740px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center;
}
.footer-brand { font-size: 15px; font-weight: 900; color: var(--accent); display: flex; align-items: center; gap: 7px; }
.footer-divider { width: 36px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 2px; }
.footer-copy { font-size: 11px; color: var(--text3); }
.footer-copy a { color: var(--accent); text-decoration: none; font-weight: 700; }
.footer-copy a:hover { text-decoration: underline; }
.footer-tags { font-size: 10px; color: var(--text3); letter-spacing: .06em; }

/* ── PRINT ───────────────────────────────────────────────── */
@media print {
  .topbar, .nav-buttons, .btn-copy, .btn-speak, .btn-print,
  .shortcut-hint, .site-footer, .sms-card, .input-section,
  .sound-card, .progress-card, #toastContainer { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
  .card { border: 1px solid #ccc !important; box-shadow: none !important; }
  .mi-val, .token-cell, .brand-name { color: #000 !important; }
  .token-table th, .token-table td { border: 1px solid #ccc !important; }
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 500px) {
  .topbar-inner { padding: 10px 12px; }
  .brand-name { font-size: 13px; }
  .container { padding: 16px 12px 40px; }
  .token-number { font-size: 14px; letter-spacing: .1em; }
  .shortcut-hint { display: none; }
  .btn-copy { padding: 11px 18px; font-size: 13px; }
  .info-grid { grid-template-columns: 1fr 1fr; }
  .meter-info-content { grid-template-columns: 1fr 1fr; }
  .hero-icon { width: 64px; height: 64px; font-size: 28px; }
}