/* ============================================================
   NCLEX Nursing Lecture — Shared Stylesheet
   Warm bright-blue nursing education theme
   ============================================================ */

:root {
  /* Brand palette */
  --primary-blue: #1e5fb8;
  --bright-blue: #2f8ae0;
  --light-blue: #eaf4fd;
  --navy: #0b2545;
  --white: #ffffff;
  --background: #f5faff;
  --text: #16324a;
  --muted: #5b7186;
  --border: #dbe9f8;
  --success: #1f9d6c;
  --warning: #d98c19;
  --danger: #d64545;

  /* Derived */
  --shadow-sm: 0 1px 3px rgba(11, 37, 69, 0.06), 0 1px 2px rgba(11, 37, 69, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 60, 110, 0.10);
  --shadow-lg: 0 20px 48px rgba(15, 60, 110, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --font-display: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --header-h: 76px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 600;
}
p { margin: 0 0 1em; color: var(--muted); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy);
  color: var(--white);
  padding: 12px 18px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* Visible focus states everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--bright-blue);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, var(--bright-blue), var(--primary-blue));
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { box-shadow: var(--shadow-lg); }

.btn-secondary {
  background: var(--white);
  color: var(--primary-blue);
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover { border-color: var(--bright-blue); }

.btn-ghost {
  background: transparent;
  color: var(--primary-blue);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--light-blue); }

.btn-block { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ---------- Badges & alerts ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--light-blue);
  color: var(--primary-blue);
}
.badge-success { background: #e7f7ef; color: var(--success); }
.badge-warning { background: #fdf1de; color: var(--warning); }
.badge-danger { background: #fbe9e9; color: var(--danger); }

.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--light-blue);
  color: var(--text);
  font-size: 0.92rem;
}
.alert-success { background: #e7f7ef; border-color: #bfe9d3; color: #135c40; }
.alert-danger { background: #fbe9e9; border-color: #f3c6c6; color: #7a2323; }

/* ---------- Site header / navbar ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  display: flex;
  align-items: center;
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--navy);
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--bright-blue), var(--primary-blue));
  position: relative;
  flex-shrink: 0;
}
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--white);
  border-radius: 2px;
}
.brand-mark::before { width: 16px; height: 3px; top: 17.5px; left: 11px; }
.brand-mark::after { width: 3px; height: 16px; top: 11px; left: 17.5px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--light-blue);
  color: var(--primary-blue);
}

.nav-actions { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none;
  background: var(--light-blue);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -180px; right: -180px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--light-blue), transparent 70%);
  z-index: 0;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--light-blue);
  color: var(--primary-blue);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero h1 span { color: var(--bright-blue); }
.hero-sub {
  font-size: 1.08rem;
  max-width: 52ch;
  margin-bottom: 30px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-stats {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-family: var(--font-display); font-size: 1.4rem; color: var(--navy); }
.hero-stats span { font-size: 0.82rem; color: var(--muted); }

/* Hero visual — CSS-generated nursing/clinical illustration */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual-card {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 3 / 2;
  background: linear-gradient(160deg, var(--white), var(--light-blue));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.hero-visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.hero-visual-card .pulse-line {
  position: absolute;
  bottom: 26%;
  left: 0;
  width: 100%;
  height: 60px;
}
.hero-visual-card .float-chip {
  position: absolute;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 12px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floaty 5s ease-in-out infinite;
}
.chip-1 { top: 14%; left: 8%; animation-delay: 0s; }
.chip-2 { bottom: 12%; right: 6%; animation-delay: 1.2s; }
.chip-3 { bottom: 12%; left: 12%; animation-delay: 2.1s; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--success); }
.dot-blue { background: var(--bright-blue); }

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) {
  .float-chip, .pulse-path { animation: none !important; }
}

.pulse-path {
  stroke: var(--bright-blue);
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: draw 3.2s ease-in-out infinite;
}
@keyframes draw {
  0% { stroke-dashoffset: 300; }
  55% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -300; }
}

/* ---------- Section shell ---------- */
.section { padding: 64px 0; }
.section-tight { padding: 40px 0; }
.section-head {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: center;
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { font-size: 1.02rem; }
.section-alt { background: var(--light-blue); }

/* ---------- Feature cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.feature-card {
  padding: 26px 22px;
}
.feature-icon {
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--light-blue);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg { width: 22px; height: 22px; stroke: var(--primary-blue); }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.92rem; margin: 0; }

/* ---------- Course cards ---------- */
.course-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}
.filter-chip[aria-pressed="true"] {
  background: var(--primary-blue);
  color: var(--white);
  border-color: var(--primary-blue);
}
.search-field {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  min-width: 220px;
}
.search-field input {
  border: none; outline: none; background: transparent;
  width: 100%; font-size: 0.9rem; color: var(--text);
}
.search-field svg { width: 16px; height: 16px; stroke: var(--muted); flex-shrink: 0; }

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.course-card {
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.course-banner {
  height: 108px;
  background: linear-gradient(135deg, var(--bright-blue), var(--primary-blue));
  position: relative;
}
.course-card:nth-of-type(2n) .course-banner { background: linear-gradient(135deg, #57b6e0, var(--primary-blue)); }
.course-card:nth-of-type(3n) .course-banner { background: linear-gradient(135deg, var(--bright-blue), #123a72); }
.course-banner::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.35) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  opacity: .5;
}
.course-body { padding: 22px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.course-body h3 { font-size: 1.12rem; margin: 0; }
.course-body p { font-size: 0.9rem; margin: 0; }
.topic-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 8px; }
.topic-tags span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary-blue);
  background: var(--light-blue);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}
.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

/* ---------- Course detail (modules) ---------- */
.course-hero {
  background: linear-gradient(135deg, var(--primary-blue), var(--navy));
  color: var(--white);
  padding: 56px 0 44px;
}
.course-hero .breadcrumb { font-size: 0.85rem; opacity: .85; margin-bottom: 14px; }
.course-hero .breadcrumb a { text-decoration: underline; }
.course-hero h1 { color: var(--white); font-size: clamp(1.7rem, 3vw, 2.3rem); }
.course-hero p { color: rgba(255,255,255,0.85); max-width: 60ch; }
.course-hero-meta { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 20px; }
.course-hero-meta div { display: flex; flex-direction: column; }
.course-hero-meta strong { font-family: var(--font-display); font-size: 1.2rem; }
.course-hero-meta span { font-size: 0.78rem; opacity: .8; }

.module-list { display: flex; flex-direction: column; gap: 14px; }
.module-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.module-num {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--light-blue);
  color: var(--primary-blue);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700;
  flex-shrink: 0;
}
.module-info { flex: 1; min-width: 0; }
.module-info h3 { font-size: 1rem; margin-bottom: 4px; }
.module-info span { font-size: 0.82rem; color: var(--muted); }
.module-progress {
  width: 130px;
  flex-shrink: 0;
}

/* ---------- Accordion: principal lesson button + sub-lesson buttons ---------- */
.accordion-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--white);
  border: none;
  text-align: left;
  font-family: inherit;
}
.accordion-header:hover { background: var(--light-blue); }
.accordion-icon {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--light-blue);
  color: var(--primary-blue);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.accordion-icon svg { width: 20px; height: 20px; stroke: currentColor; }
.accordion-title { flex: 1; min-width: 0; }
.accordion-title h3 { font-size: 1.05rem; margin-bottom: 3px; color: var(--navy); }
.accordion-title span { font-size: 0.82rem; color: var(--muted); }
.accordion-chevron {
  width: 22px; height: 22px;
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.2s ease;
}
.accordion-header[aria-expanded="true"] .accordion-chevron { transform: rotate(180deg); color: var(--primary-blue); }

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.accordion-panel.open { max-height: 900px; }

.sub-lesson-list {
  display: flex;
  flex-direction: column;
  padding: 4px 20px 16px;
  border-top: 1px solid var(--border);
}
.sub-lesson-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 8px 12px 12px;
  width: 100%;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  text-align: left;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
}
.sub-lesson-item:hover { background: var(--light-blue); }
.sub-lesson-num {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--light-blue);
  color: var(--primary-blue);
  font-size: 0.76rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.sub-lesson-item .sub-lesson-label { flex: 1; min-width: 0; }
.sub-lesson-item .sub-lesson-go {
  width: 16px; height: 16px;
  color: var(--muted);
  flex-shrink: 0;
}

/* ---------- Progress bars ---------- */
.progress-track {
  width: 100%;
  height: 8px;
  background: var(--light-blue);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--bright-blue), var(--primary-blue));
  width: 0%;
  transition: width 1.1s cubic-bezier(.4,0,.2,1);
}
.progress-fill.success { background: linear-gradient(90deg, #3fc98a, var(--success)); }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 6px;
}

/* ---------- Quiz interface ---------- */
.quiz-card { padding: 30px; max-width: 760px; margin: 0 auto; }
.quiz-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; flex-wrap: wrap; gap: 10px; }
.quiz-progress-track { height: 6px; background: var(--light-blue); border-radius: var(--radius-pill); overflow: hidden; margin-bottom: 24px; }
.quiz-progress-fill { height: 100%; background: var(--bright-blue); width: 10%; transition: width .4s ease; }
.quiz-question { font-size: 1.15rem; color: var(--navy); font-weight: 600; margin-bottom: 22px; }
.quiz-options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 22px; }
.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  text-align: left;
  font-size: 0.95rem;
  color: var(--text);
  width: 100%;
  transition: border-color .15s ease, background .15s ease;
}
.quiz-option:hover { border-color: var(--bright-blue); background: var(--light-blue); }
.quiz-option.selected { border-color: var(--primary-blue); background: var(--light-blue); font-weight: 600; }
.quiz-option.correct { border-color: var(--success); background: #e7f7ef; }
.quiz-option.incorrect { border-color: var(--danger); background: #fbe9e9; }
.quiz-option .opt-letter {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--light-blue); color: var(--primary-blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 700; flex-shrink: 0;
}
.quiz-actions { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.quiz-rationale {
  display: none;
  margin-top: 22px;
  padding: 18px 20px;
  background: var(--light-blue);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary-blue);
  font-size: 0.9rem;
}
.quiz-rationale.visible { display: block; }
.quiz-indicators { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.75);
  padding: 52px 0 26px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-grid h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 14px; }
.footer-grid ul li { margin-bottom: 9px; }
.footer-grid a { font-size: 0.88rem; color: rgba(255,255,255,0.7); }
.footer-grid a:hover { color: var(--white); }
.footer-brand p { color: rgba(255,255,255,0.65); font-size: 0.88rem; max-width: 32ch; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}

/* ============================================================
   DASHBOARD LAYOUT
   ============================================================ */
.dash-shell {
  display: grid;
  grid-template-columns: 264px 1fr;
  min-height: 100vh;
}
.dash-sidebar {
  background: var(--white);
  border-right: 1px solid var(--border);
  padding: 22px 18px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.dash-sidebar .brand { padding: 6px 8px 14px; }
.dash-nav { display: flex; flex-direction: column; gap: 3px; }
.dash-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}
.dash-nav a svg { width: 18px; height: 18px; stroke: currentColor; flex-shrink: 0; }
.dash-nav a:hover { background: var(--light-blue); color: var(--primary-blue); }
.dash-nav a[aria-current="page"] {
  background: var(--light-blue);
  color: var(--primary-blue);
  font-weight: 600;
}
.dash-nav-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  padding: 14px 14px 4px;
}

.dash-main { padding: 28px 32px 60px; min-width: 0; }
.dash-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.dash-welcome h1 { font-size: 1.5rem; margin-bottom: 4px; }
.dash-welcome p { margin: 0; font-size: 0.92rem; }
.dash-topbar-actions { display: flex; align-items: center; gap: 14px; }

.icon-btn {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.icon-btn svg { width: 19px; height: 19px; stroke: var(--navy); }
.icon-btn .dot-badge {
  position: absolute; top: 8px; right: 9px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--danger);
  border: 2px solid var(--white);
}
.dash-sidebar-toggle { display: none; }

.profile-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 6px 14px 6px 6px;
}
.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--bright-blue), var(--primary-blue));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.82rem; font-family: var(--font-display);
}
.profile-chip span { font-size: 0.85rem; font-weight: 600; color: var(--navy); }

.notification-menu {
  position: absolute;
  top: 54px; right: 0;
  width: 300px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  z-index: 50;
}
.notification-menu.open { display: block; }
.notification-menu .notif-head { padding: 10px 12px; font-weight: 600; font-size: 0.85rem; color: var(--navy); }
.notification-menu li a { display: block; padding: 10px 12px; border-radius: var(--radius-sm); font-size: 0.83rem; }
.notification-menu li a:hover { background: var(--light-blue); }
.notif-wrap { position: relative; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 26px;
}
.stat-card { padding: 20px 22px; display: flex; flex-direction: column; gap: 6px; }
.stat-card .stat-top { display: flex; align-items: center; justify-content: space-between; }
.stat-card .stat-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--light-blue);
  display: flex; align-items: center; justify-content: center;
}
.stat-card .stat-icon svg { width: 17px; height: 17px; stroke: var(--primary-blue); }
.stat-card strong { font-family: var(--font-display); font-size: 1.7rem; color: var(--navy); }
.stat-card span.stat-label { font-size: 0.82rem; color: var(--muted); }
.stat-trend { font-size: 0.76rem; font-weight: 600; color: var(--success); }

.dash-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 22px;
  margin-bottom: 26px;
  align-items: start;
}

.panel { padding: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.panel-head h2 { font-size: 1.05rem; margin: 0; }
.panel-head a { font-size: 0.82rem; font-weight: 600; color: var(--primary-blue); }

.progress-card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.progress-item { padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.progress-item .p-top { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 0.88rem; font-weight: 600; color: var(--navy); }
.progress-item .p-top span.pct { color: var(--primary-blue); }

.continue-card {
  padding: 26px;
  background: linear-gradient(135deg, var(--primary-blue), var(--navy));
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.continue-card .cc-info { flex: 1; min-width: 220px; }
.continue-card .cc-badge {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.continue-card h3 { color: var(--white); font-size: 1.2rem; margin-bottom: 4px; }
.continue-card p { color: rgba(255,255,255,0.8); margin-bottom: 14px; }
.continue-card .cc-track { background: rgba(255,255,255,0.2); }
.continue-card .cc-fill { background: var(--white); }
.continue-card .cc-progress-label { color: rgba(255,255,255,0.85); }
.continue-card .btn-primary { background: var(--white); color: var(--primary-blue); }

.activity-list { display: flex; flex-direction: column; gap: 4px; }
.activity-item { display: flex; align-items: flex-start; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.activity-item:last-child { border-bottom: none; }
.activity-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--bright-blue); margin-top: 6px; flex-shrink: 0; }
.activity-item p { margin: 0; font-size: 0.87rem; color: var(--text); }
.activity-item span { font-size: 0.75rem; color: var(--muted); }

.planner-day { margin-bottom: 16px; }
.planner-day:last-child { margin-bottom: 0; }
.planner-day h4 { font-size: 0.85rem; color: var(--primary-blue); margin-bottom: 8px; }
.planner-day ul li {
  font-size: 0.85rem;
  padding: 7px 0 7px 18px;
  position: relative;
  color: var(--text);
}
.planner-day ul li::before {
  content: "";
  position: absolute; left: 0; top: 14px;
  width: 7px; height: 7px; border-radius: 2px;
  background: var(--bright-blue);
}

.readiness-panel { display: grid; grid-template-columns: 220px 1fr; gap: 30px; align-items: center; }
.readiness-ring { position: relative; width: 180px; height: 180px; margin: 0 auto; }
.readiness-ring svg { transform: rotate(-90deg); }
.readiness-ring .ring-bg { fill: none; stroke: var(--light-blue); stroke-width: 14; }
.readiness-ring .ring-fill { fill: none; stroke: var(--primary-blue); stroke-width: 14; stroke-linecap: round; transition: stroke-dashoffset 1.2s ease; }
.readiness-ring .ring-text { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; flex-direction: column; }
.readiness-ring .ring-text strong { font-family: var(--font-display); font-size: 1.8rem; color: var(--navy); }
.readiness-ring .ring-text span { font-size: 0.75rem; color: var(--muted); }
.readiness-categories { display: flex; flex-direction: column; gap: 12px; }
.readiness-cat { display: grid; grid-template-columns: 140px 1fr 40px; align-items: center; gap: 10px; font-size: 0.85rem; }

.practice-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.practice-card { padding: 20px; text-align: center; }
.practice-card strong { display: block; font-family: var(--font-display); font-size: 1.6rem; color: var(--navy); margin-bottom: 2px; }
.practice-card span { font-size: 0.82rem; color: var(--muted); display: block; margin-bottom: 14px; }

/* ---------- Login page ---------- */
.auth-shell {
  min-height: calc(100vh - var(--header-h));
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-visual {
  background: linear-gradient(160deg, var(--primary-blue), var(--navy));
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px;
  position: relative;
  overflow: hidden;
}
.auth-visual::before {
  content: "";
  position: absolute; bottom: -120px; left: -120px;
  width: 360px; height: 360px; border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.auth-visual h2 { color: var(--white); font-size: 1.8rem; max-width: 16ch; }
.auth-visual p { color: rgba(255,255,255,0.8); max-width: 34ch; }
.auth-visual .auth-quote {
  margin-top: 40px;
  padding: 20px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.15);
  font-size: 0.92rem;
}
.auth-form-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}
.auth-form { width: 100%; max-width: 400px; }
.auth-form h1 { font-size: 1.7rem; margin-bottom: 6px; }
.auth-form > p { margin-bottom: 28px; }

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 7px;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--white);
  font-size: 0.94rem;
  color: var(--text);
  transition: border-color .15s ease;
}
.field input:focus,
.field textarea:focus,
.field select:focus { border-color: var(--bright-blue); outline: none; }
.field textarea { resize: vertical; min-height: 120px; }
.field-error { color: var(--danger); font-size: 0.8rem; margin-top: 6px; display: none; }
.field.has-error input,
.field.has-error textarea { border-color: var(--danger); }
.field.has-error .field-error { display: block; }

.password-field { position: relative; }
.password-field .toggle-pass {
  position: absolute;
  right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; padding: 4px;
  color: var(--muted);
}
.password-field .toggle-pass svg { width: 18px; height: 18px; stroke: currentColor; }

.field-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; font-size: 0.85rem; }
.checkbox-field { display: flex; align-items: center; gap: 8px; }
.checkbox-field input { width: 16px; height: 16px; }
.auth-divider { text-align: center; color: var(--muted); font-size: 0.8rem; margin: 22px 0; position: relative; }
.auth-switch { text-align: center; font-size: 0.88rem; margin-top: 18px; }
.auth-switch a { color: var(--primary-blue); font-weight: 600; }

/* ---------- About page ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card { padding: 26px; }
.value-card .feature-icon { margin-bottom: 14px; }
.about-hero { padding: 60px 0 20px; text-align: center; }
.about-hero h1 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); max-width: 22ch; margin: 0 auto 16px; }
.about-hero p { max-width: 60ch; margin: 0 auto; font-size: 1.05rem; }
.split-block { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split-block .panel-visual {
  height: 280px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--light-blue), var(--white));
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* ---------- Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info-card { padding: 26px; margin-bottom: 16px; display: flex; gap: 14px; align-items: flex-start; }
.contact-info-card .feature-icon { flex-shrink: 0; margin-bottom: 0; }
.contact-info-card h3 { font-size: 0.98rem; margin-bottom: 4px; }
.contact-info-card p { margin: 0; font-size: 0.88rem; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .dash-shell { grid-template-columns: 1fr; }
  .dash-sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: 264px;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform .25s ease;
    z-index: 400;
    box-shadow: var(--shadow-lg);
  }
  .dash-sidebar.open { transform: translateX(0); }
  .dash-sidebar-toggle {
    display: flex;
    align-items: center; justify-content: center;
    width: 42px; height: 42px;
    border-radius: var(--radius-sm);
    background: var(--white);
    border: 1px solid var(--border);
  }
  .dash-sidebar-toggle svg { width: 19px; height: 19px; stroke: var(--navy); }
  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(11,37,69,0.45);
    z-index: 350;
  }
  .sidebar-overlay.open { display: block; }
}

@media (max-width: 960px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .practice-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-grid { grid-template-columns: 1fr; }
  .progress-card-grid { grid-template-columns: 1fr; }
  .readiness-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .split-block { grid-template-columns: 1fr; }
  .auth-shell { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
  .value-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-links, .nav-actions .btn-secondary { display: none; }
  .nav-toggle { display: flex; }
  .site-header.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px;
    box-shadow: var(--shadow-md);
  }
  .site-header.menu-open .nav-links a { padding: 12px 14px; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 4px; }
}

@media (max-width: 640px) {
  .feature-grid, .course-grid, .stat-grid, .practice-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .dash-main { padding: 22px 16px 48px; }
  .hero { padding: 56px 0 40px; }
  .section { padding: 44px 0; }
  .module-item { flex-wrap: wrap; }
  .module-progress { width: 100%; }
  .quiz-card { padding: 20px; }
  .table-scroll { overflow-x: auto; }
}