/* =====================================================
   PORTAL TÉCNICO — HOJA DE ESTILOS
   Cambia los valores en :root para adaptar colores/marca
   ===================================================== */

:root {
  /* Paleta — alineada al sitio principal de Vidatea Innovation
     (charcoal + teal). Cámbiala si prefieres otra marca. */
  --color-bg: #0F172A;
  --color-bg-alt: #1E293B;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f6fb;
  --color-border: #e2e6ef;
  --color-text: #1a2233;
  --color-text-muted: #5b6478;
  --color-text-inverse: #ffffff;

  --color-primary: #00D2FF;
  --color-primary-dark: #0099BF;
  --color-primary-light: #E0FBFF;
  --color-primary-ink: #0F172A;
  --color-accent: #00D2FF;
  --color-danger: #dc2626;
  --color-danger-light: #fdecec;
  --color-success: #16a34a;
  --color-success-light: #eafaf0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.10);
  --shadow-lg: 0 20px 48px rgba(16, 24, 40, 0.18);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface-muted);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; line-height: 1.6; }

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

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 0.95rem; }

/* ===================== BOTONES ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.05s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-primary-dark); color: var(--color-text-inverse); }
.btn-ghost {
  background: transparent;
  color: var(--color-text-inverse);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-block { width: 100%; }

/* ===================== LOGIN ===================== */
.login-screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 20% 20%, rgba(29,78,216,0.35), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(245,158,11,0.25), transparent 40%),
    var(--color-bg);
}
.login-screen[hidden] { display: none; }

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2.25rem;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-logo {
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.logo-mark {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem;
  letter-spacing: 0.02em;
}

.logo-text { font-weight: 700; font-size: 1.05rem; }

.login-card h1 { font-size: 1.4rem; margin-bottom: 0.6rem; }
.login-sub {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 1.75rem;
}

#login-form input[type="password"] {
  width: 100%;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
#login-form input[type="password"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.login-error {
  color: var(--color-danger);
  font-size: 0.85rem;
  margin-top: 0.85rem;
}

.login-footnote {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-top: 1.5rem;
}

/* ===================== TOPBAR ===================== */
.topbar {
  background: var(--color-bg);
  position: sticky; top: 0; z-index: 40;
  box-shadow: var(--shadow-sm);
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
}
.brand { display: flex; align-items: center; gap: 0.7rem; color: #fff; }
.brand .logo-text { color: #fff; }

.main-nav {
  display: flex; gap: 0.25rem;
  flex: 1;
  justify-content: center;
}
.nav-link {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.72);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-link.active { color: #fff; background: rgba(255,255,255,0.14); }
.nav-link--alert { color: var(--color-accent); }
.nav-link--alert.active, .nav-link--alert:hover { color: #ffcf7a; }

.topbar-actions { display: flex; align-items: center; gap: 0.75rem; }
.hamburger { display: none; }

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 0.5rem 1rem 1rem;
  background: var(--color-bg);
}
.mobile-nav .nav-link { text-align: left; }

/* ===================== LAYOUT / VISTAS ===================== */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.view { display: none; }
.view.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.view-header { margin-bottom: 1.75rem; max-width: 640px; }
.view-header h1 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.view-header p { color: var(--color-text-muted); }

/* ---- Hero (Inicio) ---- */
.hero {
  background: linear-gradient(135deg, var(--color-bg), var(--color-bg-alt));
  color: #fff;
  padding: 3rem 2.5rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  max-width: 720px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.9rem;
}
.hero h1 { font-size: 2rem; margin-bottom: 0.9rem; }
.hero p { color: rgba(255,255,255,0.78); font-size: 1.02rem; }

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.quick-grid--single {
  grid-template-columns: 1fr;
  max-width: 360px;
}
.quick-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  text-align: left;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.quick-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.quick-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.quick-card--alert .quick-icon { background: #fff4e0; color: var(--color-accent); }
.quick-card h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.quick-card p { color: var(--color-text-muted); font-size: 0.9rem; }

.info-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}
.info-panel h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.notice-list { margin: 0; padding-left: 1.1rem; color: var(--color-text-muted); font-size: 0.92rem; }
.notice-list li { margin-bottom: 0.6rem; }
.notice-list strong { color: var(--color-text); }

/* ---- Filtros ---- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.filter-btn {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}
.filter-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* ---- Grid de tarjetas (videos / fichas) ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.media-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex; flex-direction: column;
  text-align: left;
}
.media-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.media-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-bg), var(--color-bg-alt));
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.85);
  font-size: 1.75rem;
  position: relative;
}
.media-thumb .duration {
  position: absolute; bottom: 0.5rem; right: 0.6rem;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.media-body { padding: 1rem 1.1rem 1.2rem; flex: 1; display: flex; flex-direction: column; }
.media-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}
.media-title { font-size: 0.98rem; font-weight: 700; margin-bottom: 0.3rem; }
.media-meta { color: var(--color-text-muted); font-size: 0.82rem; margin-top: auto; padding-top: 0.6rem; }

.doc-card { padding: 1.25rem 1.25rem 1.4rem; }
.doc-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.75rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}
.doc-card .media-title { margin-bottom: 0.2rem; }
.doc-download {
  margin-top: 1rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
}
.doc-download:hover { text-decoration: underline; }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}

/* ===================== FORMULARIO DE GARANTÍA ===================== */
.warranty-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 820px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--color-text); }
.field input, .field select, .field textarea {
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.field textarea { resize: vertical; }
.field-hint { font-size: 0.78rem; color: var(--color-text-muted); }

.form-status {
  margin-top: 1.25rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
}
.form-status--success { background: var(--color-success-light); color: var(--color-success); }
.form-status--error { background: var(--color-danger-light); color: var(--color-danger); }

/* ===================== FOOTER ===================== */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 3rem;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

/* ===================== MODAL DE VIDEO ===================== */
.video-modal {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem;
}
.video-modal[hidden] { display: none; }
.video-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(11,18,32,0.85);
}
.video-modal-content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  max-width: 860px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}
.video-modal-frame {
  aspect-ratio: 16/9;
  width: 100%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
  margin-bottom: 1rem;
}
.video-modal-frame iframe { width: 100%; height: 100%; border: 0; }
.video-modal-frame video { width: 100%; height: 100%; background: #000; }
.video-modal-close {
  position: absolute; top: -14px; right: -14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--color-text);
  color: #fff;
  border: 3px solid var(--color-surface-muted);
  font-size: 1.1rem;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
#video-modal-title { font-size: 1.05rem; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  .quick-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .hamburger {
    display: flex; flex-direction: column; justify-content: center; gap: 4px;
    width: 34px; height: 34px;
    background: transparent; border: none;
  }
  .hamburger span { display: block; width: 100%; height: 2px; background: #fff; border-radius: 2px; }
  .mobile-nav.open { display: flex; }
  .card-grid { grid-template-columns: 1fr; }
  .hero { padding: 2rem 1.5rem; }
  .hero h1 { font-size: 1.5rem; }
  .login-card { padding: 2rem 1.5rem; }
}