/* 11plus — clean, child-friendly, mobile-first */

:root,
[data-theme="light"] {
  color-scheme: light;
  --bg: #f0f7ff;
  --bg-glow-1: #dbeafe;
  --bg-glow-2: #c6f6d5;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-soft-2: #edf2f7;
  --text: #1a202c;
  --primary: #2b6cb0;
  --primary-dark: #1a4f8b;
  --primary-soft: #ebf8ff;
  --primary-ring: #90cdf4;
  --accent: #38a169;
  --accent-dark: #2f855a;
  --accent-soft: #c6f6d5;
  --accent-text: #22543d;
  --danger: #e53e3e;
  --danger-soft: #fff5f5;
  --danger-border: #feb2b2;
  --danger-text: #9b2c2c;
  --warning: #dd6b20;
  --warning-soft: #fffaf0;
  --warning-border: #fbd38d;
  --warning-text: #9c4221;
  --info-soft: #ebf8ff;
  --info-text: #2a4365;
  --info-border: #90cdf4;
  --muted: #4a5568;
  --muted-soft: #718096;
  --border: #e2e8f0;
  --shadow: 0 8px 24px rgba(26, 79, 139, 0.08);
  --header-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
  --input-bg: #ffffff;
  --radius: 16px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --base-font-size: 17px;
}

/* Full dark — deeper evening mode */
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-glow-1: #1e3a5f;
  --bg-glow-2: #14532d;
  --surface: #151e2e;
  --surface-soft: #1c2738;
  --surface-soft-2: #243044;
  --text: #e8eef7;
  --primary: #63b3ed;
  --primary-dark: #90cdf4;
  --primary-soft: #1a365d;
  --primary-ring: #2b6cb0;
  --accent: #48bb78;
  --accent-dark: #68d391;
  --accent-soft: #1c4532;
  --accent-text: #9ae6b4;
  --danger: #fc8181;
  --danger-soft: #3b1515;
  --danger-border: #742a2a;
  --danger-text: #feb2b2;
  --warning: #f6ad55;
  --warning-soft: #3d2c14;
  --warning-border: #975a16;
  --warning-text: #fbd38d;
  --info-soft: #1a365d;
  --info-text: #bee3f8;
  --info-border: #2b6cb0;
  --muted: #a0aec0;
  --muted-soft: #718096;
  --border: #2d3a4f;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  --header-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
  --input-bg: #0f172a;
}

/* Soft dusk — darkish without near-black screens */
[data-theme="dusk"] {
  color-scheme: dark;
  --bg: #2a3344;
  --bg-glow-1: #3d4f6f;
  --bg-glow-2: #3a5a4a;
  --surface: #3a4558;
  --surface-soft: #434f63;
  --surface-soft-2: #4d5a70;
  --text: #f0f4f8;
  --primary: #7ec8f0;
  --primary-dark: #a8d8f5;
  --primary-soft: #3a526e;
  --primary-ring: #6ba3d4;
  --accent: #6bcf8e;
  --accent-dark: #8fdbab;
  --accent-soft: #3d5c4a;
  --accent-text: #c6f0d4;
  --danger: #f5a0a0;
  --danger-soft: #5c3a3a;
  --danger-border: #a86a6a;
  --danger-text: #ffd0d0;
  --warning: #f0c070;
  --warning-soft: #5c4a30;
  --warning-border: #b89050;
  --warning-text: #ffe0b0;
  --info-soft: #3a526e;
  --info-text: #d0e8f8;
  --info-border: #6ba3d4;
  --muted: #c5cdd8;
  --muted-soft: #a8b2c0;
  --border: #5a6780;
  --shadow: 0 8px 24px rgba(20, 28, 40, 0.28);
  --header-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
  --input-bg: #323c4e;
}

/* Stronger contrast for bright rooms / outdoor reading */
[data-theme="contrast"] {
  color-scheme: light;
  --bg: #ffffff;
  --bg-glow-1: transparent;
  --bg-glow-2: transparent;
  --surface: #ffffff;
  --surface-soft: #f7f7f7;
  --surface-soft-2: #eeeeee;
  --text: #000000;
  --primary: #0044cc;
  --primary-dark: #003399;
  --primary-soft: #e8f0ff;
  --primary-ring: #0044cc;
  --accent: #006633;
  --accent-dark: #004d26;
  --accent-soft: #d8f5e4;
  --accent-text: #003d1f;
  --danger: #b00000;
  --danger-soft: #ffe8e8;
  --danger-border: #b00000;
  --danger-text: #7a0000;
  --warning: #8a4b00;
  --warning-soft: #fff3e0;
  --warning-border: #8a4b00;
  --warning-text: #5c3200;
  --info-soft: #e8f0ff;
  --info-text: #001a66;
  --info-border: #0044cc;
  --muted: #222222;
  --muted-soft: #333333;
  --border: #000000;
  --shadow: 0 0 0 2px #000000;
  --header-shadow: 0 2px 0 #000000;
  --input-bg: #ffffff;
  --base-font-size: 18px;
}

/* Bloom — soft rose + lilac paper, warm and gentle */
[data-theme="bloom"] {
  color-scheme: light;
  --bg: #fdf6f8;
  --bg-glow-1: #f5d0e0;
  --bg-glow-2: #e8d5f5;
  --surface: #fffbfc;
  --surface-soft: #faf0f4;
  --surface-soft-2: #f3e4ec;
  --text: #3d2a35;
  --primary: #b44d7a;
  --primary-dark: #8f3a60;
  --primary-soft: #fce8f0;
  --primary-ring: #e8a0be;
  --accent: #6b8f71;
  --accent-dark: #557a5b;
  --accent-soft: #e4f0e6;
  --accent-text: #2f4a34;
  --danger: #c53030;
  --danger-soft: #fff0f0;
  --danger-border: #f0b4b4;
  --danger-text: #9b2c2c;
  --warning: #c05621;
  --warning-soft: #fff6eb;
  --warning-border: #f0c9a0;
  --warning-text: #7b341e;
  --info-soft: #f3e8ff;
  --info-text: #553c7b;
  --info-border: #d6bcfa;
  --muted: #6b5560;
  --muted-soft: #8a7480;
  --border: #edd5e0;
  --shadow: 0 8px 28px rgba(180, 77, 122, 0.12);
  --header-shadow: 0 1px 0 rgba(180, 77, 122, 0.08);
  --input-bg: #fffbfc;
}

/* Lagoon — calm teal coast, fresh focus */
[data-theme="lagoon"] {
  color-scheme: light;
  --bg: #eef9f8;
  --bg-glow-1: #b8e8e4;
  --bg-glow-2: #c5e0f5;
  --surface: #f7fffe;
  --surface-soft: #e8f6f4;
  --surface-soft-2: #d8efec;
  --text: #1a3335;
  --primary: #0d7377;
  --primary-dark: #095456;
  --primary-soft: #d5f3f2;
  --primary-ring: #5ebdbf;
  --accent: #2a9d8f;
  --accent-dark: #1f7a6f;
  --accent-soft: #d4f0eb;
  --accent-text: #145a52;
  --danger: #c53030;
  --danger-soft: #fff5f5;
  --danger-border: #feb2b2;
  --danger-text: #9b2c2c;
  --warning: #c05621;
  --warning-soft: #fffaf0;
  --warning-border: #f6c18a;
  --warning-text: #7b341e;
  --info-soft: #e0f2fe;
  --info-text: #0c4a6e;
  --info-border: #7dd3fc;
  --muted: #4a6b6e;
  --muted-soft: #6a888b;
  --border: #b8d9d6;
  --shadow: 0 8px 28px rgba(13, 115, 119, 0.1);
  --header-shadow: 0 1px 0 rgba(13, 115, 119, 0.07);
  --input-bg: #f7fffe;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: var(--base-font-size, 17px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, var(--bg-glow-1) 0%, transparent 45%),
    radial-gradient(circle at bottom right, var(--bg-glow-2) 0%, transparent 40%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background 0.2s ease, color 0.15s ease;
}

a {
  color: var(--primary);
}

.container {
  width: min(720px, calc(100% - 1.5rem));
  max-width: 100%;
  margin: 0 auto;
  padding: 1rem 0 2.5rem;
  padding-left: max(0px, env(safe-area-inset-left));
  padding-right: max(0px, env(safe-area-inset-right));
  padding-bottom: max(2.5rem, env(safe-area-inset-bottom));
}

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--header-shadow);
  position: sticky;
  top: 0;
  z-index: 40;
}

.site-header .inner {
  width: min(720px, 100% - 2rem);
  margin: 0 auto;
  padding: 0.75rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem 1rem;
  flex-wrap: wrap;
}

/* Theme / look switch — pinned to the far right, separate from nav */
.ui-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0 0 0 auto;
  flex-shrink: 0;
}

.ui-switch-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  white-space: nowrap;
}

.ui-switch-select {
  appearance: none;
  -webkit-appearance: none;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  background: var(--surface-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23718096' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right 0.55rem center;
  border: 2px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 1.75rem 0.35rem 0.75rem;
  cursor: pointer;
  line-height: 1.2;
  max-width: 11rem;
}

.ui-switch-select:hover {
  border-color: var(--primary-ring);
}

.ui-switch-select:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}

[data-theme="dark"] .ui-switch-select,
[data-theme="dusk"] .ui-switch-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a0aec0' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
}

[data-theme="contrast"] .ui-switch-select {
  border-width: 2px;
  border-color: #000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  font-size: 1.15rem;
}

.brand-badge {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 12px;
  background: linear-gradient(135deg, #2b6cb0, #38a169);
  color: white;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
}

.header-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}

.header-link:hover {
  color: var(--primary);
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.card + .card {
  margin-top: 1rem;
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  line-height: 1.2;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.lead {
  color: var(--muted);
  margin: 0 0 1.25rem;
}

/* Forms */
label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.field {
  margin-bottom: 1.25rem;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(5.5rem, 1fr));
  gap: 0.6rem;
}

.choice-grid.timer {
  grid-template-columns: repeat(auto-fit, minmax(6.5rem, 1fr));
}

.choice {
  position: relative;
}

.choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice span {
  display: block;
  text-align: center;
  padding: 0.85rem 0.5rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--surface-soft);
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  color: var(--text);
}

.choice input:checked + span {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.choice span:hover {
  border-color: var(--primary-ring);
}

.choice input:focus-visible + span {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}

/* Who’s practising? — name + avatar + picture picker */
.who-card {
  max-width: 520px;
  margin: 1.5rem auto 0;
}

.who-grid {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.who-person {
  border: 2px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  padding: 0.35rem;
}

.who-person-current {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-soft);
}

.who-pick-form {
  margin: 0;
}

.who-pick {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  text-align: left;
  padding: 0.65rem 0.85rem;
  border: none;
  border-radius: 12px;
  background: transparent;
  font-size: 1.15rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.who-pick:hover {
  background: var(--primary-soft);
}

.who-pick:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}

.who-pick:active {
  transform: scale(0.99);
}

.who-avatar {
  flex-shrink: 0;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  overflow: hidden;
  background: var(--surface);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.who-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.who-avatar-placeholder {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
}

.who-name {
  flex: 1;
}

.who-avatar-picker {
  margin: 0 0.5rem 0.45rem;
  padding: 0 0.35rem 0.35rem;
}

.who-avatar-picker summary {
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--muted);
  padding: 0.25rem 0.35rem;
  list-style-position: outside;
}

.who-avatar-picker summary:hover {
  color: var(--primary);
}

.avatar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(4.25rem, 1fr));
  gap: 0.45rem;
  margin-top: 0.55rem;
}

.avatar-choice {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.12s, transform 0.1s, box-shadow 0.12s;
}

.avatar-choice img {
  width: 3.5rem;
  height: 3.5rem;
  object-fit: contain;
  display: block;
  pointer-events: none;
}

.avatar-choice:hover {
  border-color: var(--primary-ring);
  transform: scale(1.04);
}

.avatar-choice.is-selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-soft);
}

.avatar-grid-form {
  margin: 0;
}

.header-profile {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.header-avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  vertical-align: middle;
}

input[type="password"] {
  width: 100%;
  font-size: 1.1rem;
  padding: 0.9rem 1rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text);
}

input[type="password"]:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.9rem;
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.1s, background 0.15s, box-shadow 0.15s;
  max-width: 100%;
  white-space: normal;
  text-align: center;
  line-height: 1.25;
  word-break: break-word;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

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

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(43, 108, 176, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: var(--surface-soft-2);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--surface-soft);
}

.btn-success {
  background: var(--accent);
  color: white;
}

.btn-success:hover {
  background: var(--accent-dark);
}

.btn-help {
  background: linear-gradient(135deg, #111827, #4c1d95);
  color: white;
  width: 100%;
  margin-top: 0.85rem;
  min-height: 3rem;
  font-size: 0.98rem;
  padding: 0.75rem 0.75rem;
  box-shadow: 0 4px 14px rgba(76, 29, 149, 0.35);
}

.btn-help:hover {
  filter: brightness(1.08);
}

/* In-page Socratic tutor */
.tutor-widget {
  margin-top: 0.85rem;
  max-width: 100%;
  min-width: 0;
}

.tutor-panel {
  margin-top: 0.85rem;
  border: 2px solid #c4b5fd;
  border-radius: 14px;
  background: #faf5ff;
  padding: 0.75rem;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.tutor-panel-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem;
  margin-bottom: 0.65rem;
}

.tutor-hint {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.tutor-messages {
  max-height: min(240px, 40vh);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: 0.65rem;
  padding: 0.15rem;
  -webkit-overflow-scrolling: touch;
}

.tutor-bubble {
  border-radius: 12px;
  padding: 0.6rem 0.7rem;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.tutor-bubble-assistant {
  background: var(--surface);
  border: 1px solid var(--border);
  align-self: stretch;
}

.tutor-bubble-user {
  background: var(--primary-soft);
  border: 1px solid var(--primary-ring);
  align-self: stretch;
}

.tutor-bubble-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.tutor-bubble-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-weight: 600;
  font-size: 0.95rem;
}

.tutor-status {
  min-height: 1.4em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.5rem;
  overflow-wrap: anywhere;
}

.tutor-status.is-error {
  color: #9b2c2c;
}

.tutor-controls {
  display: grid;
  gap: 0.55rem;
  min-width: 0;
}

.btn-mic {
  background: #553c9a;
  color: white;
  width: 100%;
  min-height: 3.1rem;
  font-size: 1.05rem;
  padding: 0.75rem 0.5rem;
  box-sizing: border-box;
  user-select: none;
}

.btn-mic:hover:not(:disabled) {
  background: #44337a;
}

.btn-mic:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-mic.is-listening {
  background: #c53030;
  animation: pulse 1s ease-in-out infinite;
}

.tutor-type-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-width: 0;
}

.tutor-input {
  flex: 1 1 8rem;
  min-width: 0;
  width: 100%;
  font-size: 16px; /* prevents iOS/Android zoom-on-focus */
  padding: 0.75rem 0.85rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-family: inherit;
  box-sizing: border-box;
}

.tutor-input:focus {
  outline: none;
  border-color: #805ad5;
  box-shadow: 0 0 0 3px rgba(128, 90, 213, 0.2);
}

.tutor-type-form .tutor-send-btn {
  flex: 0 0 auto;
  min-width: 4.5rem;
}

.tutor-close-btn {
  display: block;
  width: 100%;
  margin-top: 0.65rem;
  background: none;
  border: none;
  color: var(--muted);
  font-weight: 700;
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.5rem;
}

.tutor-close-btn:hover {
  color: var(--primary);
}

.tutor-letter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0.65rem 0 0.35rem;
}

.tutor-letter-label {
  flex: 1 0 100%;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
  margin-right: 0.15rem;
}

.tutor-letter-btn {
  flex: 1 1 calc(25% - 0.5rem);
  min-width: 3rem;
  min-height: 3rem;
  padding: 0.45rem 0.55rem;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  font-weight: 800;
  font-size: 1.1rem;
  cursor: pointer;
  font-family: inherit;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

/* All four options on review (as shown in the paper) */
.review-options {
  list-style: none;
  margin: 0.75rem 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.review-options li {
  padding: 0.5rem 0.65rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  font-size: 0.98rem;
  line-height: 1.35;
}

.review-options li.is-correct {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.review-options li.is-chosen {
  border-color: var(--danger-border);
  background: var(--danger-soft);
}

.tutor-letter-btn:hover {
  border-color: var(--primary-ring);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.tutor-letter-btn:active {
  transform: scale(0.96);
}

/* Parent weekly snapshot */
.parent-week-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

.parent-week-table th,
.parent-week-table td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.parent-week-table th {
  font-weight: 800;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn-block {
  width: 100%;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn-row .btn {
  flex: 1 1 8rem;
}

/* Alerts */
.alert {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  font-weight: 600;
}

.alert-error {
  background: var(--danger-soft);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
}

.alert-info {
  background: var(--info-soft);
  color: var(--info-text);
  border: 1px solid var(--info-border);
}

/* Home extras */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 0;
}

.pill {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.pill-on {
  background: var(--accent-soft);
  color: var(--accent-text);
}

.pill-soon {
  background: var(--surface-soft-2);
  color: var(--muted-soft);
}

/* Clickable subject tabs on home */
button.pill-tab {
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid transparent;
  cursor: pointer;
  font-family: inherit;
  line-height: 1.2;
  background: var(--surface-soft-2);
  color: var(--muted);
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.1s;
}

button.pill-tab:hover {
  background: var(--surface-soft);
  border-color: var(--primary-ring);
  color: var(--primary);
}

button.pill-tab:focus-visible {
  outline: 3px solid var(--primary-ring);
  outline-offset: 2px;
}

button.pill-tab:active {
  transform: scale(0.97);
}

button.pill-tab.pill-tab-active {
  background: var(--accent-soft);
  color: var(--accent-text);
  border-color: var(--accent);
}

button.pill-tab.pill-tab-wip {
  border-style: dashed;
}

button.pill-tab.pill-tab-wip.pill-tab-active {
  background: var(--warning-soft);
  color: var(--warning-text);
  border-color: var(--warning-border);
}

.subject-panel.is-hidden {
  display: none;
}

/* Test page */
.test-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.progress-meta {
  font-weight: 700;
  color: var(--muted);
}

.timer {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: var(--warning-soft);
  border: 2px solid var(--warning-border);
  color: var(--warning-text);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  min-width: 5.5rem;
  justify-content: center;
}

.timer.urgent {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger-text);
  animation: pulse 1s ease-in-out infinite;
}

.timer.warning {
  background: var(--warning-soft);
  border-color: var(--warning-border);
  color: var(--warning-text);
}

.timer.paused {
  opacity: 0.55;
  animation: none;
}

.timer-cluster {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.btn-timer-pause {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 2px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  cursor: pointer;
  line-height: 1.2;
}

.btn-timer-pause:hover {
  border-color: var(--primary-ring);
  background: var(--primary-soft);
}

.btn-timer-pause[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-text);
}

.timer-hint {
  margin: 0 0 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
}

.timer-hint.is-warning {
  background: var(--warning-soft);
  border-color: var(--warning-border);
  color: var(--warning-text);
}

.timer-hint.is-urgent {
  background: var(--danger-soft);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

.timer-hint.is-paused {
  background: var(--info-soft);
  border-color: var(--info-border);
  color: var(--info-text);
}

@keyframes pulse {
  50% {
    transform: scale(1.03);
  }
}

/* A3 — home progress */
.progress-banner {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1rem 0 0.5rem;
}

.progress-tile {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 12px;
  flex: 1;
  min-width: 9rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.progress-tile-last {
  flex: 2;
  min-width: 12rem;
  flex-direction: column;
  align-items: stretch;
  gap: 0.2rem;
}

.progress-emoji {
  font-size: 1.75rem;
  line-height: 1;
}

.progress-value {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.15;
}

.progress-label {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0;
}

.progress-last-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.92rem;
}

.progress-date {
  font-size: 0.8rem;
  color: var(--muted);
}

.progress-score {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
}

.progress-pct {
  font-weight: 700;
  opacity: 0.9;
}

.progress-meta-line {
  font-size: 0.82rem;
  color: var(--muted);
}

.progress-recent {
  margin: 0.35rem 0 0.25rem;
  font-size: 0.92rem;
}

.progress-recent summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--muted);
  padding: 0.25rem 0;
}

.progress-recent-list {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.progress-recent-list li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem 0.75rem;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  font-size: 0.88rem;
}

.progress-recent-subj {
  font-weight: 700;
}

.progress-recent-score {
  color: var(--primary);
  font-weight: 700;
}

.progress-recent-date {
  color: var(--muted);
  font-size: 0.8rem;
}

.focus-pill-btn {
  cursor: pointer;
  font-family: inherit;
  border: 2px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
}

.focus-pill-btn:hover {
  border-color: var(--primary-ring);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.progress-bar {
  height: 10px;
  background: var(--surface-soft-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.progress-bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: inherit;
  transition: width 0.2s ease;
}

.topic-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.question-text {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 1.25rem;
}

.options {
  display: grid;
  gap: 0.7rem;
}

.option {
  position: relative;
}

.option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option span {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1rem;
  border: 2px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  cursor: pointer;
  font-weight: 600;
  transition: border-color 0.15s, background 0.15s;
  color: var(--text);
}

.option .letter {
  flex: 0 0 2rem;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  background: var(--surface);
  border: 2px solid var(--border);
  display: grid;
  place-items: center;
  font-weight: 800;
  color: var(--primary);
}

.option input:checked + span {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.option input:checked + span .letter {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.option span:hover {
  border-color: var(--primary-ring);
}

.abandon {
  display: block;
  text-align: center;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Review */
.score-hero {
  text-align: center;
  padding: 1.5rem 1rem;
}

.score-number {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  color: var(--primary-dark);
}

.score-sub {
  color: var(--muted);
  font-weight: 600;
  margin-top: 0.35rem;
}

.result-card {
  border-left: 6px solid var(--border);
}

.result-card.correct {
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

.result-card.wrong {
  border-left-color: var(--danger);
  background: var(--danger-soft);
}

.result-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-weight: 800;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.badge-ok {
  background: var(--accent-soft);
  color: var(--accent-text);
}

.badge-bad {
  background: var(--danger-soft);
  color: var(--danger-text);
}

.answer-line {
  margin: 0.25rem 0;
  font-size: 0.98rem;
}

/* Data charts (bar / pie / table) for graph reading */
.chart-panel {
  margin: 0 0 1rem;
  padding: 0.65rem;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.chart-panel-review {
  background: rgba(255, 255, 255, 0.75);
}

.chart-svg {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin: 0 auto;
}

.chart-title {
  font-size: 13px;
  font-weight: 700;
  fill: #1a202c;
  font-family: var(--font);
}

.chart-axis {
  stroke: #4a5568;
  stroke-width: 1.5;
}

.chart-grid {
  stroke: #e2e8f0;
  stroke-width: 1;
}

.chart-tick,
.chart-cat,
.chart-val,
.chart-legend,
.chart-axis-label {
  font-size: 11px;
  fill: #4a5568;
  font-family: var(--font);
}

.chart-val {
  font-weight: 700;
  fill: #2d3748;
  font-size: 11px;
}

.chart-cat {
  font-weight: 600;
}

.chart-legend {
  font-size: 12px;
  font-weight: 600;
  fill: #2d3748;
}

.chart-table-wrap {
  max-width: 420px;
  margin: 0 auto;
}

.chart-table-title {
  text-align: center;
  font-weight: 800;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.chart-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.chart-table th,
.chart-table td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.6rem;
  text-align: center;
}

.chart-table th {
  background: var(--surface-soft-2);
  font-weight: 800;
}

.chart-table tbody tr:nth-child(even) {
  background: var(--surface-soft);
}

.explanation {
  margin-top: 0.75rem;
  padding: 0.75rem 0.9rem;
  background: var(--surface-soft);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-note {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 2rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  /* Sit after brand; Look stays right via margin-left: auto */
  margin-left: 0.25rem;
}

@media (max-width: 520px) {
  .site-header .inner {
    flex-wrap: wrap;
  }

  .header-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    padding-top: 0.15rem;
    border-top: 1px solid var(--border);
    padding-top: 0.45rem;
  }

  .ui-switch {
    margin-left: auto;
  }
}

/* Admin */
.admin-subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.admin-subject-card {
  border: 2px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  padding: 0.9rem 1rem;
}

.admin-subject-card.admin-subject-empty {
  opacity: 0.72;
}

.admin-subject-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

.admin-subject-head h3 {
  margin: 0;
  font-size: 1.05rem;
}

.admin-subject-meta {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.45;
}

.admin-form select,
.admin-form input[type="text"],
.admin-form input[type="file"],
.admin-form textarea {
  width: 100%;
  font-size: 1rem;
  padding: 0.75rem 0.85rem;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text);
}

.admin-form select:focus,
.admin-form input:focus,
.admin-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
}

.admin-form textarea {
  resize: vertical;
  min-height: 4.5rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.field-row.options-row {
  grid-template-columns: repeat(2, 1fr);
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  text-align: left;
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.admin-table th {
  font-weight: 800;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.admin-table .q-snip {
  max-width: 16rem;
}

code {
  font-size: 0.85em;
  background: #edf2f7;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

@media (max-width: 600px) {
  .field-row,
  .field-row.options-row {
    grid-template-columns: 1fr;
  }

  .site-header .inner {
    width: min(720px, calc(100% - 1.25rem));
  }

  .brand span:last-child {
    font-size: 0.95rem;
  }

  .card {
    padding: 1rem;
    border-radius: 14px;
  }

  .score-number {
    font-size: 2.25rem;
  }

  .tutor-type-form {
    flex-direction: column;
  }

  .tutor-type-form .tutor-send-btn {
    width: 100%;
  }

  .btn-row {
    flex-direction: column;
  }

  .btn-row .btn {
    flex: 1 1 auto;
    width: 100%;
  }

  .choice-grid,
  .choice-grid.timer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  html {
    font-size: 16px;
  }

  .container {
    width: calc(100% - 1rem);
    padding-top: 0.75rem;
  }

  .card {
    padding: 0.9rem;
  }

  h1 {
    font-size: 1.35rem;
  }

  .question-text {
    font-size: 1rem;
  }

  .option span {
    padding: 0.85rem 0.75rem;
  }

  .btn-mic {
    font-size: 1.1rem;
    min-height: 3.25rem;
  }

  .tutor-panel {
    padding: 0.65rem;
  }