/* Lilly's Vocab — playful flashcard theme */

:root {
  --color-bg: #FFF8F0;            /* warm cream */
  --color-surface: #FFFFFF;
  --color-ink: #2D2A3E;           /* soft near-black plum */
  --color-ink-muted: #6E687F;
  --color-border: #EFE6DA;
  --color-primary: #7C3AED;       /* vivid violet */
  --color-primary-dark: #6528C9;
  --color-primary-soft: #EDE4FF;
  --color-accent: #FF6B6B;        /* coral — misses, flags, danger */
  --color-accent-dark: #E85454;
  --color-success: #06D6A0;       /* mint — "Got it" */
  --color-success-dark: #05B888;
  --color-sunny: #FFD166;         /* score chip / highlights */
  --color-sky: #4CC9F0;           /* progress bar */
  --radius: 12px;
  --radius-card: 20px;
  --shadow-card: 0 10px 30px rgba(124, 58, 237, .12);
  --shadow-soft: 0 2px 8px rgba(45, 42, 62, .08);
  --flip-speed: 160ms;            /* any effect has to be quick! */
  --font-display: "Avenir Next", "Trebuchet MS", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-display);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.5;
}

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

h1, h2, h3 { line-height: 1.2; }
h2 { margin: 0.4rem 0 0.8rem; }

code { background: var(--color-primary-soft); padding: 1px 5px; border-radius: 6px; font-size: 0.85em; }

.small { font-size: 0.85rem; color: var(--color-ink-muted); }
.muted { color: var(--color-ink-muted); }
.hidden { display: none !important; }
.error-text { color: var(--color-accent-dark); }

/* ===== Top bar ===== */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: linear-gradient(100deg, var(--color-primary) 0%, #9D5CFF 60%, #B983FF 100%);
  color: #fff;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 2px 12px rgba(124, 58, 237, .35);
}

.brand {
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.brand:hover { color: #fff; }
.brand-mark { font-size: 1.2rem; }

.topnav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.topnav a, .topnav-toggle {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 6px 12px;
  border-radius: 999px;
  border: none;
  background: transparent;
  font-family: inherit;
  cursor: pointer;
}
.topnav a:hover, .topnav-toggle:hover { background: rgba(255, 255, 255, 0.16); color: #fff; }
.topnav a.active, .topnav-toggle.active { background: rgba(255, 255, 255, 0.24); color: #fff; }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.menu-wrap { position: relative; display: inline-block; }
.popup-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  min-width: 170px;
  padding: 6px;
  z-index: 30;
  display: flex;
  flex-direction: column;
}
.popup-menu-right { left: auto; right: 0; }
.popup-menu a {
  color: var(--color-ink);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
}
.popup-menu a:hover { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.popup-menu a.active { background: var(--color-primary-soft); color: var(--color-primary-dark); }

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.6);
  background: var(--color-sunny);
  color: var(--color-ink);
  font-weight: 800;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}
.avatar:hover { border-color: #fff; }

/* Score chip */
.score-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--color-sunny);
  color: var(--color-ink);
  border-radius: 999px;
  padding: 5px 14px 5px 10px;
  text-decoration: none;
  font-weight: 800;
  box-shadow: inset 0 -2px 0 rgba(45, 42, 62, .12);
  line-height: 1.15;
}
.score-chip:hover { color: var(--color-ink); transform: scale(1.04); }
.score-star { font-size: 1rem; }
.score-numbers { font-size: 0.98rem; }
.score-today { font-size: 0.68rem; font-weight: 600; color: rgba(45, 42, 62, 0.7); }

/* ===== Layout ===== */

.content { max-width: 960px; margin: 0 auto; padding: 22px 16px 60px; }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.page-head h2, .page-head h3 { margin: 0; }

.count-pill {
  display: inline-block;
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  border-radius: 999px;
  padding: 2px 10px;
  vertical-align: middle;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  padding: 18px 20px;
  margin: 14px 0;
}
.card h3 { margin-top: 0; }

/* ===== Forms ===== */

.stack { display: flex; flex-direction: column; gap: 14px; }
.stack label { display: flex; flex-direction: column; gap: 5px; font-weight: 600; font-size: 0.92rem; }
.stack label.inline { flex-direction: row; align-items: center; gap: 8px; font-weight: 500; }

.grid { display: grid; gap: 12px; }
.form-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.filter-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); align-items: end; }
.grid label { display: flex; flex-direction: column; gap: 5px; font-weight: 600; font-size: 0.92rem; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"], textarea, select {
  font-family: inherit;
  font-size: 1rem;
  padding: 9px 12px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
  font-weight: 400;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
input[type="checkbox"], input[type="radio"] { accent-color: var(--color-primary); width: 17px; height: 17px; }

.actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.actions form { display: inline; }
.pager { margin-top: 8px; justify-content: flex-end; }

/* ===== Buttons ===== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink);
  cursor: pointer;
  text-decoration: none;
  transition: transform 80ms ease, box-shadow 80ms ease;
}
.button:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.button:active { transform: scale(0.96); }
.button.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(124, 58, 237, .3);
}
.button.primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.button.danger { border-color: var(--color-accent); color: var(--color-accent-dark); }
.button.danger:hover { background: var(--color-accent); color: #fff; }
.button.small { font-size: 0.82rem; padding: 5px 12px; }
.button.disabled { opacity: 0.45; pointer-events: none; }

/* ===== Messages ===== */

.flash {
  background: #E4FBF3;
  border: 1px solid var(--color-success);
  color: #04795A;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-weight: 600;
}
.error {
  background: #FFECEC;
  border: 1px solid var(--color-accent);
  color: #B33A3A;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-weight: 600;
}

.status-verified { color: var(--color-success-dark); font-weight: 700; }
.status-pending { color: #C98A04; font-weight: 700; }
.status-failed { color: var(--color-accent-dark); font-weight: 700; }

/* ===== Tables ===== */

.table-scroll { overflow-x: auto; }

table.list { width: 100%; border-collapse: collapse; }
table.list th {
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--color-ink-muted);
  padding: 8px 10px;
  border-bottom: 2px solid var(--color-border);
}
table.list td { padding: 9px 10px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
table.list tbody tr:hover { background: #FDF9FF; }

/* ===== Import wizard ===== */

.wizard-steps { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0 16px; }
.wizard-step {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink-muted);
}
.wizard-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-ink);
  font-size: 0.75rem;
  font-weight: 800;
}
.wizard-step.active { border-color: var(--color-primary); color: var(--color-primary-dark); }
.wizard-step.active .wizard-step-num { background: var(--color-primary); color: #fff; }
.wizard-step.done { border-color: var(--color-success); color: var(--color-success-dark); }
.wizard-step.done .wizard-step-num { background: var(--color-success); color: #fff; }

pre.import-example {
  background: #F7F2FF;
  border: 1px dashed var(--color-primary);
  border-radius: var(--radius);
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 0.85rem;
}

/* ===== Review page ===== */

.review-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.deck-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.deck-tab {
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 6px 16px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink-muted);
}
.deck-tab:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.deck-tab.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.deck-order { display: flex; align-items: center; gap: 8px; }
.deck-order form { display: inline; }

.deck-picker label { display: flex; align-items: center; gap: 6px; font-weight: 600; }
.deck-picker select { padding: 5px 10px; border-radius: 999px; font-size: 0.9rem; font-weight: 600; }

.tag-pill {
  display: inline-block;
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  border-radius: 999px;
  padding: 1px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  margin: 1px 2px 1px 0;
  white-space: nowrap;
}

.progress-wrap { margin: 6px 0 18px; }
.progress-track {
  height: 10px;
  border-radius: 999px;
  background: #EFE8FB;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-sky), var(--color-primary));
  transition: width 200ms ease;
}
.progress-text { text-align: center; margin-top: 5px; font-weight: 600; }

.flashcard-stage { display: flex; flex-direction: column; align-items: center; gap: 18px; }

.flashcard-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
}

.nav-btn {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--color-primary-soft);
  background: var(--color-surface);
  color: var(--color-primary);
  font-family: inherit;
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform 80ms ease, background 80ms ease;
}
.nav-btn:hover { background: var(--color-primary-soft); color: var(--color-primary-dark); transform: scale(1.08); }
.nav-btn:active { transform: scale(0.94); }
.nav-btn:disabled { opacity: 0.35; pointer-events: none; }

.flashcard {
  position: relative;
  flex: 0 1 560px;
  width: min(560px, 100%);
  min-height: 300px;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 2px solid var(--color-primary-soft);
  cursor: pointer;
  display: grid;
  user-select: none;
}
.flashcard:focus-visible { outline: 3px solid var(--color-sky); outline-offset: 3px; }
.flashcard.leaving { opacity: 0; transform: translateX(18px); transition: opacity 130ms ease, transform 130ms ease; }

.flashcard-face {
  grid-area: 1 / 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 44px 34px;
  text-align: center;
  transition: opacity var(--flip-speed) ease;
}
.flashcard-front { opacity: 1; }
.flashcard-back { opacity: 0; pointer-events: none; }
.flashcard.flipped .flashcard-front { opacity: 0; pointer-events: none; }
.flashcard.flipped .flashcard-back { opacity: 1; pointer-events: auto; }

@media (prefers-reduced-motion: reduce) {
  .flashcard-face { transition: none; }
  .flashcard.leaving { transition: none; }
}

.flashcard-word {
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 800;
  color: var(--color-primary-dark);
  letter-spacing: 0.3px;
  overflow-wrap: anywhere;
}
.flashcard-definition { font-size: clamp(1.1rem, 3vw, 1.4rem); font-weight: 500; overflow-wrap: anywhere; }
.flashcard-sentences {
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  font-style: italic;
  color: var(--color-ink-muted);
  overflow-wrap: anywhere;
}
.flashcard-synonyms {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  background: var(--color-primary-soft);
  border-radius: 999px;
  padding: 4px 14px;
  overflow-wrap: anywhere;
}
.flashcard-hint { opacity: 0.75; }

.flag-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #C9C2D8;
  padding: 8px;
  border-radius: 50%;
  line-height: 0;
  transition: color 100ms ease, transform 100ms ease;
}
.flag-btn:hover { color: var(--color-accent); transform: scale(1.12); background: #FFF3F3; }
.flag-btn .flag-fill { opacity: 0; transition: opacity 100ms ease; }
.flag-btn.flagged { color: var(--color-accent); }
.flag-btn.flagged .flag-fill { opacity: 1; }

.mark-buttons { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.mark-btn { font-size: 1.05rem; padding: 12px 26px; }
.mark-got {
  background: var(--color-success);
  border-color: var(--color-success);
  color: #fff;
  box-shadow: 0 4px 14px rgba(6, 214, 160, .35);
}
.mark-got:hover { background: var(--color-success-dark); border-color: var(--color-success-dark); color: #fff; }
.mark-miss {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 107, 107, .35);
}
.mark-miss:hover { background: var(--color-accent-dark); border-color: var(--color-accent-dark); color: #fff; }

.keyboard-hint { text-align: center; margin: 0; }

.empty-deck, .deck-done { text-align: center; padding: 40px 24px; }
.deck-done-burst { font-size: 3rem; }
.deck-done-tally { font-size: 1.1rem; font-weight: 600; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(45, 42, 62, .35);
  z-index: 50;
  max-width: 90vw;
}

/* ===== Stats page ===== */

.stat-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  margin: 14px 0;
}
.stat-tile {
  border-radius: var(--radius-card);
  padding: 18px;
  text-align: center;
  border: 2px solid transparent;
  box-shadow: var(--shadow-soft);
}
.stat-number { font-size: 2.2rem; font-weight: 800; line-height: 1.1; }
.stat-label { font-weight: 700; margin-top: 2px; }
.stat-sub { margin-top: 2px; }
.stat-mastered { background: #E4FBF3; border-color: var(--color-success); }
.stat-mastered .stat-number { color: var(--color-success-dark); }
.stat-misses { background: #FFEFEF; border-color: var(--color-accent); }
.stat-misses .stat-number { color: var(--color-accent-dark); }
.stat-flagged { background: #FFF6DE; border-color: var(--color-sunny); }
.stat-flagged .stat-number { color: #C98A04; }
.stat-today { background: #E9F7FE; border-color: var(--color-sky); }
.stat-today .stat-number { color: #1592C4; }

.daily-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 160px;
  padding-top: 8px;
}
.daily-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  height: 100%;
}
.daily-count { min-height: 1.1em; font-weight: 700; }
.daily-bar-track { flex: 1; width: 100%; display: flex; align-items: flex-end; justify-content: center; }
.daily-bar {
  width: min(26px, 80%);
  border-radius: 8px 8px 3px 3px;
  background: linear-gradient(180deg, var(--color-sky), var(--color-primary));
  min-height: 0;
}
.daily-label { font-weight: 600; }

/* ===== Auth pages ===== */

body.auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 209, 102, .35), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(76, 201, 240, .3), transparent 45%),
    radial-gradient(circle at 80% 15%, rgba(255, 107, 107, .22), transparent 35%),
    var(--color-bg);
}
.auth-card { width: 100%; max-width: 420px; padding: 30px 28px; }
.auth-card h1 { margin: 0.2rem 0 0.2rem; text-align: center; color: var(--color-primary-dark); }
.auth-card .subtitle { text-align: center; margin-top: 0; color: var(--color-ink-muted); }
.auth-mark { text-align: center; font-size: 2.2rem; }

/* ===== Responsive ===== */

@media (max-width: 640px) {
  .topbar { padding: 8px 12px; gap: 8px; }
  .brand { font-size: 1rem; }
  .topnav a, .topnav-toggle { padding: 5px 9px; font-size: 0.88rem; }
  .score-today { display: none; }
  .content { padding: 14px 10px 60px; }
  .flashcard-row { gap: 8px; }
  .nav-btn { width: 38px; height: 38px; font-size: 1.15rem; }
  .flashcard { min-height: 240px; }
  .flashcard-face { padding: 34px 20px; }
  .keyboard-hint { display: none; }
}