/* ═══════════════════════════════════════════════════════
   STAGE — ГЛАВНЫЙ ГЕРОЙ | Platform UI
   Pixel/game style, dark theme
   ═══════════════════════════════════════════════════════ */

:root {
  --bg:        #050514;
  --bg2:       #0a0a20;
  --bg3:       #12123a;
  --surface:   #1a1a3a;
  --border:    #2a2a5a;
  --green:     #AAFF00;
  --cyan:      #00CFFF;
  --yellow:    #FFE633;
  --pink:      #FF3D8C;
  --white:     #FFFFFF;
  --gray:      #888888;
  --text:      #e0e0f0;
  --radius:    8px;
  --font:      'Inter', 'Segoe UI', sans-serif;
  --font-px:   'Press Start 2P', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ──────────────────────────────────────────── */

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 24px 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 0 20px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-logo .logo-text {
  font-family: var(--font-px);
  font-size: 10px;
  color: var(--green);
  line-height: 1.6;
}

.sidebar-logo .logo-sub {
  font-size: 11px;
  color: var(--gray);
  margin-top: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text);
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  background: var(--surface);
  color: var(--white);
  text-decoration: none;
}

.nav-item.active {
  border-left-color: var(--green);
  color: var(--green);
  background: rgba(170,255,0,0.06);
}

.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }

.nav-section {
  padding: 16px 20px 4px;
  font-size: 10px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-footer {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.user-name { font-size: 13px; font-weight: 600; }
.user-role { font-size: 11px; color: var(--gray); }

.main-content {
  margin-left: 240px;
  flex: 1;
  padding: 32px;
  max-width: 1200px;
}

/* ── Page header ─────────────────────────────────────── */

.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
}

.page-title span {
  color: var(--green);
}

.page-subtitle {
  color: var(--gray);
  margin-top: 4px;
  font-size: 14px;
}

/* ── Cards ───────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-px);
  font-size: 20px;
  color: var(--green);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 12px;
  color: var(--gray);
}

/* ── Buttons ─────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
}

.btn:hover { opacity: 0.85; text-decoration: none; }
.btn:active { transform: scale(0.98); }

.btn-primary { background: var(--green); color: #000; }
.btn-cyan    { background: var(--cyan); color: #000; }
.btn-yellow  { background: var(--yellow); color: #000; }
.btn-pink    { background: var(--pink); color: #fff; }
.btn-ghost   { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-sm      { padding: 6px 14px; font-size: 12px; }
.btn-danger  { background: var(--pink); color: #fff; }

/* ── Forms ───────────────────────────────────────────── */

.form-group {
  margin-bottom: 18px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font);
  transition: border-color 0.15s;
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--cyan);
}

textarea { resize: vertical; min-height: 100px; }

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--green);
}

/* ── Alerts ──────────────────────────────────────────── */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

.alert-error   { background: rgba(255,61,140,0.15); border: 1px solid var(--pink); color: #ff8cb8; }
.alert-success { background: rgba(170,255,0,0.1);  border: 1px solid var(--green); color: var(--green); }
.alert-info    { background: rgba(0,207,255,0.1);  border: 1px solid var(--cyan); color: var(--cyan); }
.alert-warn    { background: rgba(255,230,51,0.1); border: 1px solid var(--yellow); color: var(--yellow); }

/* ── Tables ──────────────────────────────────────────── */

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

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 12px 14px;
  font-size: 14px;
  border-bottom: 1px solid rgba(42,42,90,0.5);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(170,255,0,0.03); }

/* ── Badges / Status ─────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-green  { background: rgba(170,255,0,0.15); color: var(--green); border: 1px solid var(--green); }
.badge-cyan   { background: rgba(0,207,255,0.15); color: var(--cyan); border: 1px solid var(--cyan); }
.badge-yellow { background: rgba(255,230,51,0.15); color: var(--yellow); border: 1px solid var(--yellow); }
.badge-pink   { background: rgba(255,61,140,0.15); color: var(--pink); border: 1px solid var(--pink); }
.badge-gray   { background: rgba(136,136,136,0.15); color: var(--gray); border: 1px solid var(--gray); }

/* ── Progress bar ────────────────────────────────────── */

.progress-bar {
  background: var(--bg3);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--green);
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* ── Module cards ────────────────────────────────────── */

.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: border-color 0.2s;
}

.module-card:hover {
  border-color: var(--green);
}

.module-card.locked {
  opacity: 0.5;
  border-color: var(--border);
}

.module-card.locked:hover {
  border-color: var(--border);
}

.module-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
}

.lesson-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(42,42,90,0.4);
  font-size: 14px;
}

.lesson-item:last-child { border-bottom: none; }

.lesson-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}

.lesson-check.done {
  background: var(--green);
  border-color: var(--green);
  color: #000;
}

/* ── Achievement cards ───────────────────────────────── */

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.achievement-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.achievement-card.earned {
  border-color: var(--yellow);
  background: rgba(255,230,51,0.05);
}

.achievement-card:hover.earned {
  transform: translateY(-2px);
}

.achievement-card.locked {
  opacity: 0.4;
  filter: grayscale(1);
}

.achievement-icon { font-size: 40px; margin-bottom: 10px; }
.achievement-title { font-size: 13px; font-weight: 600; color: var(--white); margin-bottom: 4px; }
.achievement-desc  { font-size: 11px; color: var(--gray); }

/* ── Video container ─────────────────────────────────── */

.video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}

.video-container iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* ── IP badges ───────────────────────────────────────── */

.ip-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.ip-item:last-child { border-bottom: none; }

/* ── Auth pages ──────────────────────────────────────── */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(ellipse at 50% 0%, rgba(170,255,0,0.08) 0%, transparent 60%),
              var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo .pixel-title {
  font-family: var(--font-px);
  font-size: 12px;
  color: var(--green);
  line-height: 2;
}

.auth-logo .sub {
  font-size: 13px;
  color: var(--gray);
  margin-top: 4px;
}

.auth-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 24px;
  text-align: center;
}

/* ── Misc ────────────────────────────────────────────── */

.text-green  { color: var(--green); }
.text-cyan   { color: var(--cyan); }
.text-yellow { color: var(--yellow); }
.text-pink   { color: var(--pink); }
.text-gray   { color: var(--gray); }
.text-white  { color: var(--white); }

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.flex          { display: flex; }
.items-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 768px) {
  .sidebar { width: 100%; position: relative; height: auto; }
  .main-content { margin-left: 0; padding: 16px; }
  .layout { flex-direction: column; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .achievements-grid { grid-template-columns: 1fr 1fr; }
  .auth-card { padding: 24px; }
}