/*
 * This is a manifest file that'll be compiled into application.css.
 *
 * With Propshaft, assets are served efficiently without preprocessing steps. You can still include
 * application-wide styles in this file, but keep in mind that CSS precedence will follow the standard
 * cascading order, meaning styles declared later in the document or manifest will override earlier ones,
 * depending on specificity.
 *
 * Consider organizing styles into separate files for maintainability.
 */

/* ===== Brand color palette ===== */
:root {
  --color-navy: #102A43;
  --color-navy-dark: #0D2236;
  --color-navy-light: #4C5F72;
  --color-yellow: #F9C74F;
  --color-white: #FFFFFF;
  --color-light-blue: #EAF2F8;
  --color-light-gray: #F7F9FC;
  --color-dark-gray: #334E68;
  --color-dark-gray-muted: #7A8C9D;
  --color-green: #52B788;
  --color-green-tint: #EAF6F1;
  --color-red: #E76F51;
  --color-red-tint: #FDF1EE;
}

body { background-color: var(--color-white); color: var(--color-dark-gray); }

/* ===== Bootstrap component overrides to match the brand palette ===== */
.btn-primary {
  --bs-btn-bg: var(--color-navy);
  --bs-btn-border-color: var(--color-navy);
  --bs-btn-hover-bg: var(--color-navy-dark);
  --bs-btn-hover-border-color: var(--color-navy-dark);
  --bs-btn-active-bg: var(--color-navy-dark);
  --bs-btn-active-border-color: var(--color-navy-dark);
  --bs-btn-disabled-bg: var(--color-navy);
  --bs-btn-disabled-border-color: var(--color-navy);
}
.btn-warning {
  --bs-btn-bg: var(--color-yellow);
  --bs-btn-border-color: var(--color-yellow);
  --bs-btn-color: var(--color-navy);
  --bs-btn-hover-bg: #f7bb2c;
  --bs-btn-hover-border-color: #f7bb2c;
  --bs-btn-hover-color: var(--color-navy);
  --bs-btn-active-bg: #f7bb2c;
  --bs-btn-active-border-color: #f7bb2c;
  --bs-btn-active-color: var(--color-navy);
}
.btn-success {
  --bs-btn-bg: var(--color-green);
  --bs-btn-border-color: var(--color-green);
  --bs-btn-hover-bg: #439c73;
  --bs-btn-hover-border-color: #439c73;
  --bs-btn-active-bg: #439c73;
  --bs-btn-active-border-color: #439c73;
}
.btn-danger {
  --bs-btn-bg: var(--color-red);
  --bs-btn-border-color: var(--color-red);
  --bs-btn-hover-bg: #d85a3c;
  --bs-btn-hover-border-color: #d85a3c;
  --bs-btn-active-bg: #d85a3c;
  --bs-btn-active-border-color: #d85a3c;
}
.btn-outline-primary {
  --bs-btn-color: var(--color-navy);
  --bs-btn-border-color: var(--color-navy);
  --bs-btn-hover-bg: var(--color-navy);
  --bs-btn-hover-border-color: var(--color-navy);
}
.bg-primary { background-color: var(--color-navy) !important; }
.bg-warning { background-color: var(--color-yellow) !important; }
.bg-success { background-color: var(--color-green) !important; }
.bg-danger { background-color: var(--color-red) !important; }
.bg-light { background-color: var(--color-light-gray) !important; }
.text-primary { color: var(--color-navy) !important; }
.text-warning { color: var(--color-yellow) !important; }
.text-success { color: var(--color-green) !important; }
.text-danger { color: var(--color-red) !important; }
.text-muted { color: var(--color-dark-gray-muted) !important; }
a { color: var(--color-navy); }
a:hover { color: var(--color-navy-dark); }
.alert-success { background-color: var(--color-green-tint); border-color: var(--color-green); color: var(--color-navy); }
.alert-danger { background-color: var(--color-red-tint); border-color: var(--color-red); color: var(--color-navy); }
.form-control:focus, .form-select:focus {
  border-color: var(--color-navy-light);
  box-shadow: 0 0 0 0.25rem rgba(16, 42, 67, 0.15);
}

/* ===== TCF infographic-style articles (articles#show) ===== */
.tcf-info { color: var(--color-dark-gray); font-size: 1.05rem; line-height: 1.75; }
.tcf-info p { margin-bottom: 1.1rem; }
.tcf-info ul:not(.checklist) { padding-left: 1.3rem; }
.tcf-info ul:not(.checklist) li { margin-bottom: 0.45rem; }
.tcf-info .checklist { list-style: none; padding-left: 0; margin: 0; }
.tcf-info .checklist li { padding-left: 1.6rem; position: relative; margin-bottom: 0.55rem; }
.tcf-info .checklist li::before { content: "✓"; position: absolute; left: 0; top: 0.05em; color: var(--color-green); font-weight: 700; }

.tcf-info-hero {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 55%, var(--color-navy-light) 100%);
  color: #fff;
  padding: 2rem 2rem 1.75rem;
  margin-bottom: 1.75rem;
  min-height: 230px;
}
.tcf-info-hero-skyline {
  position: absolute;
  right: -0.5rem;
  bottom: -0.5rem;
  width: 68%;
  max-width: 480px;
  height: 190px;
  opacity: 0.95;
  pointer-events: none;
}
.tcf-info-hero-skyline svg { width: 100%; height: 100%; display: block; }
.tcf-info-hero-flag {
  position: absolute;
  top: 1.1rem;
  right: 1.4rem;
  font-size: 2.8rem;
  line-height: 1;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.3));
  z-index: 2;
}
.tcf-info-hero-content { position: relative; z-index: 1; max-width: 34rem; }
.tcf-info-hero h1, .tcf-info-hero h2 { font-weight: 800; font-size: 1.95rem; margin-bottom: 0.5rem; }
.tcf-info-hero p { font-size: 1.05rem; opacity: 0.94; margin-bottom: 0; }
.tcf-info-stats { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.4rem; }
.tcf-info-stat {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 0.7rem;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
  backdrop-filter: blur(2px);
}
.tcf-info-stat .icon { font-size: 1.3rem; }
.tcf-info-stat strong { display: block; font-size: 0.98rem; }
.tcf-info-stat span.sub { opacity: 0.85; font-size: 0.9rem; }

.tcf-info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.1rem; margin-bottom: 1.75rem; }
.tcf-info-card { background: #fff; border: 1px solid var(--color-light-blue); border-radius: 0.9rem; padding: 1.3rem; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); }
.tcf-info-card-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.9rem; font-weight: 700; font-size: 1.02rem; color: var(--color-dark-gray); }
.tcf-info-icon-badge { width: 2.4rem; height: 2.4rem; border-radius: 0.6rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1.25rem; }
.tcf-info-q { font-weight: 700; font-size: 0.98rem; margin: 0.8rem 0 0.25rem; color: var(--color-dark-gray); }
.tcf-info-card p, .tcf-info-card ul, .tcf-info-card li { font-size: 1.02rem; color: var(--color-dark-gray); }
.tcf-info-card p { margin: 0 0 0.35rem; }
.tcf-info-card ul { padding-left: 1.2rem; margin: 0.3rem 0 0.35rem; }
.tcf-info-card ul.checklist { list-style: none; padding-left: 0; }
.tcf-info-card ul.checklist li { padding-left: 1.4rem; position: relative; margin-bottom: 0.2rem; }
.tcf-info-card ul.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--color-green); font-weight: 700; }

.is-blue   { background: var(--color-light-blue); color: var(--color-navy); }
.is-green  { background: var(--color-green-tint); color: var(--color-green); }
.is-orange { background: #fff4e5; color: #d97706; }
.is-purple { background: #f1e9fe; color: #7c3aed; }
.tcf-info-card-head.is-blue, .tcf-info-card-head.is-green, .tcf-info-card-head.is-orange, .tcf-info-card-head.is-purple { background: none; }

.tcf-info-panel { background: var(--color-light-blue); border: 1px solid var(--color-light-blue); border-radius: 1rem; padding: 1.4rem; margin-bottom: 1.75rem; }
.tcf-info-section-title { font-size: 1.2rem; font-weight: 700; color: var(--color-navy); margin-bottom: 1.1rem; display: flex; align-items: center; gap: 0.55rem; }

.tcf-info-grammar-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(195px, 1fr)); gap: 1rem; }
.tcf-info-grammar-card { border: 1px solid var(--color-light-blue); border-radius: 0.75rem; padding: 1rem 1.05rem; }
.tcf-info-grammar-card .head { display: flex; align-items: center; gap: 0.45rem; font-weight: 700; font-size: 0.96rem; margin-bottom: 0.5rem; color: var(--color-dark-gray); }
.tcf-info-grammar-card ul { list-style: none; padding: 0; margin: 0; font-size: 0.96rem; color: var(--color-dark-gray); }
.tcf-info-grammar-card li { padding-left: 0.95rem; position: relative; margin-bottom: 0.2rem; }
.tcf-info-grammar-card li::before { content: "•"; position: absolute; left: 0; color: var(--color-dark-gray-muted); }

.tcf-info-callout { border-radius: 0.65rem; padding: 0.7rem 0.9rem; font-size: 1rem; margin-top: 0.7rem; display: flex; gap: 0.5rem; align-items: flex-start; }
.tcf-info-callout.is-info { background: var(--color-light-blue); color: var(--color-navy); }
.tcf-info-callout.is-ok { background: var(--color-green-tint); color: var(--color-green); }
.tcf-info-callout.is-warn { background: #fff4e5; color: #9a5b06; }

.tcf-info-skill-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.1rem; margin-bottom: 1.75rem; }
.tcf-info-skill-card { background: #fff; border: 1px solid var(--color-light-blue); border-radius: 0.9rem; padding: 1.35rem; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); }
.tcf-info-skill-head { display: flex; align-items: center; gap: 0.65rem; margin-bottom: 0.8rem; }
.tcf-info-skill-num { width: 2rem; height: 2rem; border-radius: 50%; color: #fff; font-weight: 700; font-size: 0.95rem; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.tcf-info-skill-head h3 { font-size: 1.08rem; font-weight: 700; margin: 0; color: var(--color-dark-gray); }
.tcf-info-skill-card p { font-size: 1.02rem; color: var(--color-dark-gray); }
.tcf-info-skill-card ul { font-size: 1.02rem; color: var(--color-dark-gray); padding-left: 1.2rem; margin: 0.35rem 0; }
.tcf-info-skill-card li { margin-bottom: 0.2rem; }
.tcf-info-skill-card strong { color: var(--color-dark-gray); }

.tcf-info-levels { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; }
.tcf-info-level { text-align: center; background: #fff; border: 1px solid var(--color-light-blue); border-radius: 0.9rem; padding: 1.15rem 0.85rem; }
.tcf-info-level .badge-circle { width: 2.9rem; height: 2.9rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; margin: 0 auto 0.6rem; font-size: 1rem; }
.tcf-info-level .level-title { font-weight: 700; font-size: 0.92rem; color: var(--color-dark-gray); margin-bottom: 0.15rem; }
.tcf-info-level .level-points { font-size: 0.88rem; color: var(--color-dark-gray); margin-bottom: 0.6rem; }
.tcf-info-level ul { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; color: var(--color-dark-gray); text-align: left; }
.tcf-info-level li { padding-left: 0.85rem; position: relative; margin-bottom: 0.25rem; }
.tcf-info-level li::before { content: "•"; position: absolute; left: 0; color: var(--color-dark-gray-muted); }

.tcf-info-cta {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  background: var(--color-light-blue); border: 1px solid var(--color-light-blue); border-radius: 1rem; padding: 1.25rem 1.5rem; margin-top: 0.5rem;
}
.tcf-info-cta p { margin: 0; font-size: 1.08rem; color: var(--color-dark-gray); }
.tcf-info-cta .btn-cta {
  border: none; font-weight: 700; border-radius: 0.6rem; padding: 0.7rem 1.3rem; text-decoration: none;
  font-size: 1rem; display: inline-flex; align-items: center; gap: 0.4rem; white-space: nowrap;
}
.tcf-info-cta .btn-cta.amber { background: var(--color-yellow); color: var(--color-dark-gray); }
.tcf-info-cta .btn-cta.blue { background: var(--color-navy); color: #fff; }

@media (max-width: 575.98px) {
  .tcf-info-hero-skyline { width: 85%; height: 130px; opacity: 0.6; }
  .tcf-info-hero-flag { font-size: 2.1rem; }
}

/* ===== Flashcards intro page (flashcards#show) ===== */
.flashcards-hero-deco {
  position: absolute;
  right: -0.5rem;
  bottom: -0.5rem;
  width: 60%;
  max-width: 420px;
  height: 190px;
  opacity: 0.95;
  pointer-events: none;
}
.flashcards-hero-deco svg { width: 100%; height: 100%; display: block; }

.flashcards-panel {
  background-image: radial-gradient(rgba(16, 42, 67, 0.08) 1px, transparent 1px), linear-gradient(var(--color-light-blue), var(--color-light-blue));
  background-size: 14px 14px, 100% 100%;
}

.flashcards-cta {
  background-image: linear-gradient(135deg, rgba(16, 42, 67, 0.10), rgba(249, 199, 79, 0.12)),
    radial-gradient(circle at 15% 20%, rgba(16, 42, 67, 0.14) 0, transparent 45%);
}

@media (max-width: 575.98px) {
  .flashcards-hero-deco { width: 80%; height: 130px; opacity: 0.6; }
}

/* ===== Turbo page-transition progress bar ===== */
.turbo-progress-bar {
  height: 3px;
  background-color: var(--color-yellow);
}

/* ===== Grammar index page ===== */
.grammar-section-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.9rem; }
.grammar-section-head .grammar-section-badge {
  width: 2.1rem; height: 2.1rem; border-radius: 0.55rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 1.05rem;
}
.grammar-section-head .grammar-section-title { font-weight: 700; font-size: 1.02rem; color: var(--color-dark-gray); }
.grammar-section-head .grammar-section-count {
  font-size: 0.72rem; font-weight: 600; color: var(--color-dark-gray);
  background: var(--color-light-gray); border-radius: 999px; padding: 0.15rem 0.55rem;
}
.grammar-topic-card {
  background: #fff; border: 1px solid var(--color-light-blue); border-radius: 0.9rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); transition: transform 0.15s ease, box-shadow 0.15s ease;
  overflow: hidden;
}
.grammar-topic-card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(16, 42, 67, 0.1); }

/* ===== Grammar topic show page: lesson / practice split ===== */
.grammar-panel-head { display: flex; align-items: center; gap: 0.55rem; font-size: 1.05rem; font-weight: 700; color: var(--color-navy); margin-bottom: 1rem; }

/* English translation shown under a French explanation or example — kept
   visually secondary so the French stays the main focus. */
.grammar-translation { display: block; font-size: 0.82rem; font-style: italic; color: #6b7280; margin-top: 0.1rem; }

/* Wrap wide conjugation tables so they scroll instead of overflowing the card. */
.grammar-table-wrap { overflow-x: auto; margin: 0.75rem 0 1.25rem; }
.grammar-table-wrap table { margin: 0 !important; }

/* Compact variant for large conjugation tables (many verb columns). */
.grammar-table-compact { border-collapse: collapse; width: 100%; font-size: 0.82rem; }
.grammar-table-compact td { border: 1px solid #e5e9f2; padding: 0.3rem 0.5rem; vertical-align: top; text-align: left; white-space: nowrap; }

.grammar-exercise-group { margin-bottom: 1.5rem; }
.grammar-exercise-group:last-child { margin-bottom: 0; }
.grammar-exercise-group-title { font-size: 0.85rem; font-weight: 700; color: var(--color-dark-gray); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.7rem; }

.grammar-exercise-row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem;
  border: 1px solid var(--color-light-blue); border-radius: 0.75rem;
  padding: 0.7rem 0.9rem; margin-bottom: 0.6rem; background: #fff;
}
.grammar-exercise-row.is-correct { border-color: var(--color-green); background: var(--color-green-tint); }
.grammar-exercise-row.is-incorrect { border-color: var(--color-red); background: var(--color-red-tint); }
.grammar-exercise-prompt { flex: 1 1 auto; min-width: 12rem; font-size: 0.95rem; color: var(--color-dark-gray); }
.grammar-exercise-verb { font-weight: 700; color: var(--color-navy); margin-right: 0.35rem; }
.grammar-exercise-input {
  flex: 0 1 12rem; border: 1px solid var(--color-light-blue); border-radius: 0.5rem;
  padding: 0.35rem 0.6rem; font-size: 0.9rem;
}
.grammar-exercise-choices { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.grammar-exercise-choice-btn {
  border: 1px solid var(--color-light-blue); background: #fff; border-radius: 0.5rem;
  padding: 0.3rem 0.7rem; font-size: 0.88rem; cursor: pointer;
  transition: border-color 0.12s ease, background-color 0.12s ease;
}
.grammar-exercise-choice-btn:hover { border-color: var(--color-navy-light); background: var(--color-light-blue); }
.grammar-exercise-choice-btn.is-selected { border-color: var(--color-navy); background: var(--color-light-blue); }
.grammar-exercise-choice-btn.is-selected:hover { background: var(--color-light-blue); }
.grammar-exercise-qnum { font-weight: 700; color: var(--color-navy); margin-right: 0.15rem; }
.grammar-exercise-check-btn {
  border: none; background: var(--color-navy); color: #fff; border-radius: 0.5rem;
  padding: 0.35rem 0.9rem; font-size: 0.85rem; font-weight: 600; cursor: pointer;
}
.grammar-exercise-feedback { font-size: 0.85rem; font-weight: 600; min-width: 6rem; }
.grammar-exercise-feedback.is-correct { color: var(--color-green); }
.grammar-exercise-feedback.is-incorrect { color: var(--color-red); }

.grammar-exercise-score {
  display: flex; align-items: center; gap: 0.7rem;
  background: var(--color-light-blue); border: 1px solid var(--color-light-blue); border-radius: 0.75rem;
  padding: 0.6rem 0.9rem; margin-bottom: 1.25rem; font-size: 0.9rem; color: var(--color-navy); font-weight: 600;
}
.grammar-exercise-score .bar { flex: 1 1 auto; height: 0.4rem; border-radius: 999px; background: var(--color-light-blue); overflow: hidden; }
.grammar-exercise-score .bar-fill { height: 100%; background: var(--color-navy); transition: width 0.2s ease; }

/* Virtual French keyboard — see app/views/shared/_french_keyboard.html.erb */
.french-keyboard { position: relative; display: inline-block; margin-top: 0.35rem; }
.french-keyboard-toggle {
  border: 1px solid var(--color-light-blue); background: #fff; color: var(--color-navy);
  border-radius: 0.5rem; padding: 0.35rem 0.6rem; font-size: 1.3rem; line-height: 1; cursor: pointer;
}
.french-keyboard-toggle:hover { background: var(--color-light-blue); }
.french-keyboard-panel {
  display: none; position: absolute; z-index: 20; top: calc(100% + 0.3rem); left: 0;
  flex-wrap: wrap; gap: 0.3rem; width: min(18rem, calc(100vw - 2rem));
  background: #fff; border: 1px solid var(--color-light-blue); border-radius: 0.6rem;
  padding: 0.5rem; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}
.french-keyboard-panel.is-open { display: flex; }
.french-keyboard-key {
  border: 1px solid var(--color-light-blue); background: var(--color-light-gray); color: var(--color-dark-gray);
  border-radius: 0.4rem; width: 2rem; height: 2rem; font-size: 0.95rem; font-weight: 600; cursor: pointer;
}
.french-keyboard-key:hover { border-color: var(--color-navy-light); background: var(--color-light-blue); }
.french-keyboard-shift { background: var(--color-navy); color: #fff; border-color: var(--color-navy); }
.french-keyboard-panel.is-shifted .french-keyboard-shift { background: var(--color-navy-light); }

.reading-explain { margin: 0.5rem 0 0.25rem; font-size: 0.88rem; color: var(--color-dark-gray); }
.reading-explain summary { cursor: pointer; font-weight: 600; color: var(--color-navy); }
.reading-explain summary:hover { text-decoration: underline; }
.reading-explain[open] summary { margin-bottom: 0.35rem; }

/* ===== TCF Writing — tâche editor: timer + AI correction ===== */
.writing-timer-display {
  font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.05rem;
  color: var(--color-dark-gray); min-width: 3.2rem;
}
.writing-timer-display.is-running { color: var(--color-navy); }
.is-overtime .writing-timer-display { color: var(--color-red); }
.writing-timer-track { height: 0.4rem; border-radius: 999px; background: var(--color-light-blue); overflow: hidden; }
.writing-timer-fill { height: 100%; background: var(--color-navy); transition: width 1s linear; }
.is-overtime .writing-timer-fill { background: var(--color-red); }

.writing-spinner {
  width: 1rem; height: 1rem; border-radius: 50%; display: inline-block; flex-shrink: 0;
  border: 2px solid rgba(16, 42, 67, 0.25); border-top-color: var(--color-navy);
  animation: writing-spin 0.8s linear infinite;
}
@keyframes writing-spin { to { transform: rotate(360deg); } }

.writing-level-badge {
  width: 3rem; height: 3rem; border-radius: 0.75rem; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; color: var(--color-navy); background: var(--color-light-blue);
}
.writing-error-type {
  display: inline-block; font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.03em; border-radius: 999px; padding: 0.08rem 0.5rem; margin-right: 0.4rem;
}
.writing-errors del { text-decoration-color: rgba(231, 111, 81, 0.5); }