/* ============================================================
   Academia AV Eventos — Design System
   ============================================================ */

:root {
  --bg:        #07070f;
  --surface:   #0f0f1e;
  --card:      #141426;
  --border:    #1e1e38;
  --accent:    #e63946;
  --accent2:   #00c2ff;
  --accent3:   #06d6a0;
  --text:      #eef2ff;
  --muted:     #7880a4;
  --warning:   #ffd60a;
  --danger:    #e63946;
  --success:   #06d6a0;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow:    0 4px 24px rgba(0,0,0,.6);
  --font:      'Segoe UI', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { opacity: .85; }

img { max-width: 100%; }

/* ── Typography ─────────────────────────────────── */
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; line-height: 1.2; }
h2 { font-size: clamp(1.3rem, 3vw, 1.9rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { color: var(--muted); }
p.light { color: var(--text); }

/* ── Layout ──────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.container--narrow { max-width: 680px; margin: 0 auto; padding: 0 1.25rem; }

/* ── Navbar ──────────────────────────────────────── */
.av-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7,7,15,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.av-nav__inner {
  display: flex; align-items: center; gap: 1rem;
  height: 62px; max-width: 1100px; margin: 0 auto; padding: 0 1.25rem;
}
.av-nav__logo {
  font-size: 1.1rem; font-weight: 800; color: var(--text);
  letter-spacing: -.02em; white-space: nowrap;
}
.av-nav__logo span { color: var(--accent); }
.av-nav__spacer { flex: 1; }
.av-nav__link { color: var(--muted); font-size: .9rem; transition: color .2s; }
.av-nav__link:hover, .av-nav__link.active { color: var(--text); }

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .65rem 1.4rem; border-radius: var(--radius);
  font-size: .95rem; font-weight: 600; cursor: pointer;
  border: none; transition: opacity .2s, transform .1s;
  text-decoration: none;
}
.btn:active { transform: scale(.97); }
.btn:hover  { opacity: .9; }
.btn--primary  { background: var(--accent);  color: #fff; }
.btn--blue     { background: var(--accent2); color: #07070f; }
.btn--ghost    { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn--success  { background: var(--success); color: #07070f; }
.btn--full     { width: 100%; }
.btn--lg       { padding: .85rem 2rem; font-size: 1.05rem; }
.btn:disabled  { opacity: .4; cursor: not-allowed; }

/* ── Cards ────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card--hover:hover {
  border-color: var(--accent2);
  transform: translateY(-2px);
  transition: all .2s;
}

/* ── Badge ────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .65rem; border-radius: 999px;
  font-size: .75rem; font-weight: 600;
}
.badge--red   { background: rgba(230,57,70,.18); color: var(--accent); }
.badge--blue  { background: rgba(0,194,255,.15); color: var(--accent2); }
.badge--green { background: rgba(6,214,160,.15); color: var(--success); }
.badge--gray  { background: rgba(120,128,164,.15); color: var(--muted); }
.badge--warn  { background: rgba(255,214,10,.15); color: var(--warning); }

/* ── Progress bar ─────────────────────────────────── */
.progress-bar { background: var(--border); border-radius: 999px; overflow: hidden; height: 8px; }
.progress-bar__fill { height: 100%; border-radius: 999px; background: var(--accent); transition: width .5s; }
.progress-bar__fill--blue  { background: var(--accent2); }
.progress-bar__fill--green { background: var(--success); }

/* ── Progress ring ────────────────────────────────── */
.ring { position: relative; display: inline-flex; align-items: center; justify-content: center; }
.ring svg { transform: rotate(-90deg); }
.ring__bg   { fill: none; stroke: var(--border); }
.ring__fill { fill: none; stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .6s; }
.ring__text {
  position: absolute; text-align: center;
  font-size: .85rem; font-weight: 700; color: var(--text);
}

/* ── Form ─────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-label { font-size: .85rem; color: var(--muted); font-weight: 600; }
.form-input, .form-select, .form-textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: .7rem 1rem;
  font-size: .95rem;
  font-family: var(--font);
  width: 100%;
  transition: border-color .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--accent2);
}
.form-input::placeholder { color: var(--muted); }
.form-select option { background: var(--card); }
.form-error { color: var(--danger); font-size: .82rem; margin-top: .25rem; }

/* ── Alert ────────────────────────────────────────── */
.alert {
  padding: .85rem 1.2rem; border-radius: var(--radius);
  font-size: .9rem; display: none;
}
.alert--error   { background: rgba(230,57,70,.15); border: 1px solid rgba(230,57,70,.3); color: #ff7c84; }
.alert--success { background: rgba(6,214,160,.12); border: 1px solid rgba(6,214,160,.3); color: var(--success); }
.alert--warn    { background: rgba(255,214,10,.1);  border: 1px solid rgba(255,214,10,.3); color: var(--warning); }
.alert.visible  { display: block; }

/* ── Module card ──────────────────────────────────── */
.module-card {
  display: grid; grid-template-columns: 48px 1fr auto;
  align-items: center; gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); text-decoration: none; color: var(--text);
  transition: border-color .2s, transform .15s;
}
.module-card:hover:not(.locked) { border-color: var(--accent2); transform: translateX(4px); }
.module-card.locked { opacity: .45; cursor: not-allowed; }
.module-card.completed { border-color: rgba(6,214,160,.3); }
.module-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; color: var(--muted);
  flex-shrink: 0;
}
.module-card.available .module-num,
.module-card.in_progress .module-num { border-color: var(--accent2); color: var(--accent2); }
.module-card.completed .module-num   { border-color: var(--success); color: var(--success); }

/* ── Lesson list ──────────────────────────────────── */
.lesson-item {
  display: flex; align-items: center; gap: .85rem;
  padding: .8rem 1rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  text-decoration: none; color: var(--text); transition: border-color .2s;
}
.lesson-item:hover { border-color: var(--accent2); }
.lesson-item.done  { border-color: rgba(6,214,160,.25); }
.lesson-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 8px; background: var(--card);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}

/* ── Video player wrapper ────────────────────────── */
.video-wrap {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 16/9; background: var(--surface);
}
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ── Content blocks ───────────────────────────────── */
.content-block { line-height: 1.8; color: var(--text); white-space: pre-wrap; font-size: .97rem; }
.info-box {
  border-radius: var(--radius); padding: 1rem 1.25rem;
  font-size: .9rem; line-height: 1.7;
}
.info-box--blue   { background: rgba(0,194,255,.08); border-left: 3px solid var(--accent2); }
.info-box--yellow { background: rgba(255,214,10,.08);  border-left: 3px solid var(--warning); }
.info-box--green  { background: rgba(6,214,160,.08);  border-left: 3px solid var(--success); }
.info-box__title  { font-weight: 700; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .4rem; }

/* ── Quiz ─────────────────────────────────────────── */
.quiz-option {
  padding: .85rem 1.1rem; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  cursor: pointer; transition: all .15s; font-size: .95rem;
  text-align: left; color: var(--text); width: 100%; display: flex; align-items: center; gap: .75rem;
}
.quiz-option:hover:not(:disabled) { border-color: var(--accent2); }
.quiz-option.selected { border-color: var(--accent2); background: rgba(0,194,255,.08); }
.quiz-option.correct  { border-color: var(--success);  background: rgba(6,214,160,.1); }
.quiz-option.wrong    { border-color: var(--danger);    background: rgba(230,57,70,.1); }
.quiz-option:disabled { cursor: default; }
.quiz-marker {
  width: 22px; height: 22px; flex-shrink: 0; border-radius: 50%;
  border: 2px solid var(--border); display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700;
}
.quiz-option.selected .quiz-marker { border-color: var(--accent2); background: var(--accent2); color: #07070f; }
.quiz-option.correct  .quiz-marker { border-color: var(--success);  background: var(--success);  color: #07070f; }
.quiz-option.wrong    .quiz-marker { border-color: var(--danger);    background: var(--danger);   color: #fff; }

/* ── Points chip ──────────────────────────────────── */
.points-chip {
  display: inline-flex; align-items: center; gap: .3rem;
  background: rgba(230,57,70,.12); border: 1px solid rgba(230,57,70,.25);
  border-radius: 999px; padding: .3rem .9rem;
  font-size: .85rem; font-weight: 700; color: var(--accent);
}

/* ── Level bar ────────────────────────────────────── */
.level-block { }
.level-title { font-size: .75rem; color: var(--muted); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.level-name  { font-size: 1.15rem; font-weight: 800; color: var(--text); margin: .1rem 0 .5rem; }

/* ── Dashboard sidebar ────────────────────────────── */
.dash-layout { display: grid; grid-template-columns: 280px 1fr; gap: 1.5rem; align-items: start; }
.dash-sidebar {
  position: sticky; top: 78px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.dash-sidebar__header { padding: 1.2rem 1.25rem; border-bottom: 1px solid var(--border); }
.dash-sidebar__item {
  display: flex; align-items: center; gap: .75rem;
  padding: .75rem 1.25rem; color: var(--muted);
  font-size: .9rem; border-bottom: 1px solid var(--border);
  text-decoration: none; transition: all .15s;
}
.dash-sidebar__item:last-child { border-bottom: none; }
.dash-sidebar__item:hover, .dash-sidebar__item.active { color: var(--text); background: rgba(255,255,255,.04); }
.dash-sidebar__item.active { color: var(--accent2); }

/* ── Stats grid ───────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem;
  text-align: center;
}
.stat-card__value { font-size: 2rem; font-weight: 800; color: var(--text); }
.stat-card__label { font-size: .78rem; color: var(--muted); margin-top: .15rem; }

/* ── Landing ──────────────────────────────────────── */
.hero {
  padding: 5rem 0 3.5rem;
  background: radial-gradient(ellipse at 50% -20%, rgba(230,57,70,.12) 0%, transparent 60%);
}
.hero__tag { color: var(--accent); font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.hero__title { margin: .6rem 0 1rem; }
.hero__sub { font-size: 1.1rem; max-width: 560px; }
.hero__ctas { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.75rem; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.5rem;
}
.feature-icon { font-size: 2rem; margin-bottom: .75rem; }

.modules-list { display: flex; flex-direction: column; gap: .6rem; }
.module-row {
  display: flex; align-items: center; gap: .85rem;
  padding: .85rem 1rem; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); font-size: .9rem;
}
.module-row__num { color: var(--accent); font-weight: 700; font-size: .8rem; min-width: 28px; }

/* ── Section spacing ──────────────────────────────── */
.section { padding: 3.5rem 0; }
.section-title { margin-bottom: 2rem; }
.section-title h2 { margin-bottom: .3rem; }

/* ── Footer ───────────────────────────────────────── */
.av-footer {
  text-align: center; padding: 2rem 1rem;
  color: var(--muted); font-size: .82rem;
  border-top: 1px solid var(--border); margin-top: 4rem;
}

/* ── Spinner ──────────────────────────────────────── */
.spinner {
  display: inline-block; width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,.15);
  border-top-color: var(--accent2); border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999; display: flex; flex-direction: column; gap: .5rem; }
.toast {
  padding: .75rem 1.25rem; border-radius: var(--radius);
  font-size: .9rem; font-weight: 600; color: #fff;
  animation: fadeUp .3s ease; box-shadow: var(--shadow);
}
.toast--success { background: var(--success); color: #07070f; }
.toast--error   { background: var(--danger); }
.toast--info    { background: var(--accent2); color: #07070f; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ── Divider ──────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 2rem 0; }

/* ── Utilities ─────────────────────────────────────── */
.flex     { display: flex; }
.items-center { align-items: center; }
.gap-1    { gap: .5rem; }
.gap-2    { gap: 1rem; }
.gap-3    { gap: 1.5rem; }
.mt-1     { margin-top: .5rem; }
.mt-2     { margin-top: 1rem; }
.mt-3     { margin-top: 1.5rem; }
.mt-4     { margin-top: 2rem; }
.mb-1     { margin-bottom: .5rem; }
.mb-2     { margin-bottom: 1rem; }
.mb-3     { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.text-muted  { color: var(--muted); }
.text-sm     { font-size: .85rem; }
.text-xs     { font-size: .78rem; }
.font-bold   { font-weight: 700; }
.stack       { display: flex; flex-direction: column; }
.stack-2     { display: flex; flex-direction: column; gap: 1rem; }
.stack-3     { display: flex; flex-direction: column; gap: 1.5rem; }
.hidden      { display: none !important; }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  .dash-layout { grid-template-columns: 1fr; }
  .dash-sidebar { position: static; }
  .hero { padding: 3rem 0 2rem; }
  .features-grid { grid-template-columns: 1fr; }
}