/* Direction: StudyTrack — bright classroom. Sky-blue brand, soft purple, mint, sunny yellow and coral on white cards. */
/* Completed by the platform from the short form: both modes, every
   palette token, each text-on-ground pair at its floor. To restyle, write the
   short form again (the decisions in one :root) and it is completed again. */

:root {
  --canvas: #eff7ff;
  --surface: #ffffff;
  --surface-2: #e3ecf4;
  --border: #d6e5f6;
  --border-strong: #a9b2bb;
  --ink: #1b2a41;
  --muted: #566781;
  --accent: #1a78c2;
  --accent-hover: #1666a5;
  --accent-ink: #ffffff;
  --accent-text: #12609e;
  --accent-strong: #186eb2;
  --accent-soft: #dcefff;
  --accent-border: #8fbee4;
  --success: #15803d;
  --success-ink: #ffffff;
  --success-soft: #d5e9e8;
  --success-strong: #137638;
  --warning: #b45309;
  --warning-ink: #ffffff;
  --warning-soft: #e8e3e1;
  --warning-strong: #a64c08;
  --danger: #b91c1c;
  --danger-ink: #ffffff;
  --danger-soft: #e9dde4;
  --danger-strong: #b91c1c;
  --chart-1: #1a78c2;
  --chart-2: #a775d0;
  --chart-3: #9b324d;
  --chart-4: #bb781a;
  --chart-5: #466608;
  --chart-6: #1f9992;

  --font-display: "Poppins", "Nunito", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, sans-serif;
  --display-weight: 700;
  --radius-card: 18px;
  --radius-btn: 14px;
  --radius-input: 12px;
  --shadow-card: 0 2px 10px rgba(30, 90, 160, 0.08);
  --card-pad: 1.25rem;
  --x-on-photo: #ffffff;
  --x-hero-btn-bg: #ffffff;
  --x-hero-btn-ink: #0f4f85;
  --x-sky: #3aa4ee;
  --x-sky-soft: #dcefff;
  --x-sky-ink: #0c5389;
  --x-purple: #7c5cd6;
  --x-purple-soft: #ebe5fb;
  --x-purple-ink: #46298f;
  --x-mint: #2fbf7a;
  --x-mint-soft: #d9f4e6;
  --x-mint-ink: #0c6238;
  --x-yellow: #f5b82e;
  --x-yellow-soft: #fff1bd;
  --x-yellow-ink: #6e4d00;
  --x-coral: #ef6f5e;
  --x-coral-soft: #ffe0da;
  --x-coral-ink: #9b2c1a;
  --gradient-hero: linear-gradient(135deg, #14609f 0%, #1a78c2 50%, #6a4cc4 100%);
  --gradient-login: linear-gradient(160deg, #dcefff 0%, #ebe5fb 55%, #fff1bd 100%);
  --font-mono: "JetBrains Mono Variable", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-sans: "Nunito", system-ui, sans-serif;
  --display-tracking: -0.02em;
  --eyebrow-tracking: 0.08em;
}

html[data-theme="dark"] {
  --canvas: #030a11;
  --surface: #1c2329;
  --surface-2: #10161d;
  --border: #262c32;
  --border-strong: #4f5458;
  --ink: #eff7ff;
  --muted: #9198a0;
  --accent: #1a78c2;
  --accent-hover: #3c8ccb;
  --accent-ink: #ffffff;
  --accent-text: #4d96cf;
  --accent-strong: #3d8dcb;
  --accent-soft: #082238;
  --accent-border: #0d3b61;
  --success: #15803d;
  --success-ink: #ffffff;
  --success-soft: #07241b;
  --success-strong: #499c68;
  --warning: #b45309;
  --warning-ink: #ffffff;
  --warning-soft: #2a1a0f;
  --warning-strong: #c57a40;
  --danger: #b91c1c;
  --danger-ink: #ffffff;
  --danger-soft: #2b0e13;
  --danger-strong: #d16969;
  --chart-1: #1a78c2;
  --chart-2: #a775d0;
  --chart-3: #c4576f;
  --chart-4: #bb781a;
  --chart-5: #678f24;
  --chart-6: #09a199;
}

/* StudyTrack — the pieces only this app has. Colours come from theme.css tokens. */
.tone-sky { background: var(--x-sky-soft); color: var(--x-sky-ink); }
.tone-purple { background: var(--x-purple-soft); color: var(--x-purple-ink); }
.tone-mint { background: var(--x-mint-soft); color: var(--x-mint-ink); }
.tone-yellow { background: var(--x-yellow-soft); color: var(--x-yellow-ink); }
.tone-coral { background: var(--x-coral-soft); color: var(--x-coral-ink); }
.fill-sky { background: var(--x-sky); }
.fill-purple { background: var(--x-purple); }
.fill-mint { background: var(--x-mint); }
.fill-yellow { background: var(--x-yellow); }
.fill-coral { background: var(--x-coral); }

.pill { display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.2rem 0.65rem; border-radius: 999px; font-size: 0.78rem; font-weight: 700; white-space: nowrap; }
.req { color: var(--x-coral-ink); }

.logo-badge { display: inline-grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 0.85rem; background: var(--gradient-hero); font-size: 1.25rem; flex: none; }
.logo-lg { width: 3.2rem; height: 3.2rem; font-size: 1.7rem; }
.avatar { display: inline-grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 999px; background: var(--x-purple-soft); color: var(--x-purple-ink); font-weight: 800; font-size: 0.8rem; flex: none; }
.avatar-lg { width: 3.2rem; height: 3.2rem; font-size: 1rem; }
.avatar-xl { width: 4.4rem; height: 4.4rem; font-size: 1.4rem; }

.navlink { display: flex; align-items: center; gap: 0.5rem; padding: 0.55rem 0.75rem; border-radius: 0.85rem; font-weight: 700; color: var(--ink); transition: background 0.15s; }
.navlink:hover { background: var(--accent-soft); }
.navlink:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.navlink[aria-current="page"] { background: var(--accent); color: var(--accent-ink); }
.navlink-box { background: var(--surface-2); }
.bnav { display: flex; flex-direction: column; align-items: center; gap: 0.1rem; padding: 0.45rem 0; font-size: 0.7rem; font-weight: 700; color: var(--muted); background: transparent; border: 0; cursor: pointer; }
.bnav[aria-current="page"] { color: var(--accent-text); background: var(--accent-soft); }
.profile summary::-webkit-details-marker { display: none; }
.profile summary:focus-visible { outline: 3px solid var(--accent); }

.dash-hero { background: var(--gradient-hero); color: var(--x-on-photo); border-radius: calc(var(--radius-card) + 6px); padding: 1.5rem; }
.hero-btn { background: var(--x-hero-btn-bg); color: var(--x-hero-btn-ink); border-color: transparent; justify-content: center; }
.hero-btn:hover { filter: brightness(0.94); }

.stat { display: flex; flex-direction: column; gap: 0.15rem; padding: 1rem 1.1rem; border-radius: var(--radius-card); animation: st-rise 0.5s ease-out both; transition: transform 0.15s; }
a.stat:hover { transform: translateY(-3px); }
a.stat:active { transform: scale(0.98); }
a.stat:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.stat-label { font-weight: 800; font-size: 0.85rem; }
.stat-value { font-family: var(--font-display); font-weight: 700; font-size: 2.2rem; line-height: 1.1; }
@keyframes st-rise { from { transform: translateY(12px); } to { transform: none; } }
html.reduced-motion .stat { animation: none; }

.bar { height: 0.65rem; border-radius: 999px; background: var(--surface-2); overflow: hidden; border: 1px solid var(--border); }
.bar > i { display: block; height: 100%; border-radius: 999px; transition: width 0.6s ease; }
.bar.stacked { display: flex; height: 1.3rem; }
.bar.stacked > i { border-radius: 0; }

.date-tile { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; min-width: 3.1rem; padding: 0.3rem 0.4rem; border-radius: 0.85rem; background: var(--x-yellow-soft); color: var(--x-yellow-ink); font-size: 0.7rem; font-weight: 700; text-transform: uppercase; flex: none; }
.date-tile b { font-size: 1.15rem; line-height: 1.1; font-family: var(--font-display); }

.tbl { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.tbl th { text-align: left; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); padding: 0.7rem 0.9rem; background: var(--surface-2); white-space: nowrap; }
.tbl td { padding: 0.7rem 0.9rem; border-top: 1px solid var(--border); vertical-align: top; }
.tbl tbody tr:hover { background: var(--accent-soft); }

.att-opt { position: relative; cursor: pointer; }
.att-opt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.att-opt span { display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0.4rem 1rem; border-radius: 999px; border: 2px solid var(--border); background: var(--surface); font-weight: 800; transition: background 0.15s, border-color 0.15s; }
.att-opt:hover span { border-color: var(--border-strong); }
.att-opt input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.att-opt.p input:checked + span { background: var(--x-mint-soft); border-color: var(--x-mint); color: var(--x-mint-ink); }
.att-opt.a input:checked + span { background: var(--x-coral-soft); border-color: var(--x-coral); color: var(--x-coral-ink); }
.att-opt.l input:checked + span { background: var(--x-yellow-soft); border-color: var(--x-yellow); color: var(--x-yellow-ink); }

.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-text { fill: var(--muted); font-size: 11px; }
.chart-val { fill: var(--ink); font-weight: 700; }
.chart-line { stroke: var(--x-sky); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart-dot { fill: var(--x-purple); stroke: var(--surface); stroke-width: 2; }

.flash { margin-bottom: 1rem; font-weight: 700; }
.flash-ok { background: var(--x-mint-soft); color: var(--x-mint-ink); border-color: var(--x-mint); }
.flash-err { background: var(--x-coral-soft); color: var(--x-coral-ink); border-color: var(--x-coral); }

.login-bg { background: var(--gradient-login); }
.login-card { padding: 1.75rem; }
.demo-box { background: var(--x-yellow-soft); color: var(--x-yellow-ink); padding: 1rem; border-radius: 1rem; }
.demo-box .text-muted { color: var(--x-yellow-ink); }
.demo-box code { font-weight: 800; }

.student-card, .card { transition: box-shadow 0.15s; }
.student-card:hover { box-shadow: var(--shadow-raised, var(--shadow-card)); }
.card-over { border-color: var(--x-coral); }
.reminder { border-left: 6px solid var(--x-sky); }
.tone-edge-coral { border-left-color: var(--x-coral); }
.tone-edge-yellow { border-left-color: var(--x-yellow); }
.tone-edge-sky { border-left-color: var(--x-sky); }
.note { background: var(--surface-2); padding: 0.75rem; border-radius: 0.85rem; }
.ach-card { background: var(--x-yellow-soft); color: var(--x-yellow-ink); border-color: var(--x-yellow); }
.ach-card .text-muted { color: var(--x-yellow-ink); opacity: 0.85; }
.form-card { border-top: 6px solid var(--x-sky); scroll-margin-top: 1rem; }
.detail-card { border-top: 6px solid var(--x-purple); }
.del-btn { color: var(--x-coral-ink); }
.del-btn:hover { background: var(--x-coral-soft); }