/*
Theme Name:  Phobos Theme
Theme URI:   https://github.com/tu-repo/phobos
Description: Tema LMS tipo Udemy para plataforma de cursos profesionales con certificados.
Version:     1.0.0
Author:      Phobos Dev
Text Domain: phobos-theme
*/

/* ── Reset mínimo ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Variables ─────────────────────────────────────────────────────────────── */
:root {
  --color-primary:    #1c2b4a;   /* Azul marino profundo */
  --color-accent:     #e53935;   /* Rojo acento */
  --color-gold:       #f5a623;   /* Dorado certificados */
  --color-text:       #2d2d2d;
  --color-muted:      #6b7280;
  --color-bg:         #f9fafb;
  --color-white:      #ffffff;
  --color-border:     #e5e7eb;
  --color-success:    #16a34a;
  --color-warning:    #d97706;

  --font-sans: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-size-base: 1rem;
  --line-height: 1.6;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 12px rgba(0,0,0,.12);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.18);

  --max-width: 1200px;
  --gap:        24px;
}

/* ── Base ──────────────────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size:   var(--font-size-base);
  line-height: var(--line-height);
  color:       var(--color-text);
  background:  var(--color-bg);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent); }

img { max-width: 100%; height: auto; display: block; }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.phobos-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* ── Tipografía ────────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
}
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.375rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

/* ── Botones ───────────────────────────────────────────────────────────────── */
.phobos-btn {
  display:         inline-flex;
  align-items:     center;
  justify-content: center;
  gap:             8px;
  padding:         12px 28px;
  border-radius:   var(--radius-sm);
  font-weight:     600;
  font-size:       0.9375rem;
  cursor:          pointer;
  border:          2px solid transparent;
  transition:      all .2s ease;
  text-decoration: none;
}

.phobos-btn--primary {
  background: var(--color-accent);
  color:      var(--color-white);
  border-color: var(--color-accent);
}
.phobos-btn--primary:hover {
  background:   transparent;
  color:        var(--color-accent);
}

.phobos-btn--secondary {
  background:   var(--color-white);
  color:        var(--color-primary);
  border-color: var(--color-primary);
}
.phobos-btn--secondary:hover {
  background:  var(--color-primary);
  color:       var(--color-white);
}

.phobos-btn--gold {
  background:   var(--color-gold);
  color:        var(--color-white);
  border-color: var(--color-gold);
}
.phobos-btn--gold:hover { filter: brightness(0.9); }

.phobos-btn--acceder {
  background:   var(--color-success);
  color:        var(--color-white);
  border-color: var(--color-success);
  padding:      8px 16px;
  font-size:    0.875rem;
}

/* ── Header ────────────────────────────────────────────────────────────────── */
.phobos-header {
  position:   sticky;
  top:        0;
  z-index:    100;
  background: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.phobos-header__inner {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  gap:             var(--gap);
  height:          68px;
}

.phobos-header__logo {
  font-size:   1.4rem;
  font-weight: 800;
  color:       var(--color-white);
  letter-spacing: -.5px;
}
.phobos-header__logo span { color: var(--color-accent); }

.phobos-header__nav { display: flex; gap: 8px; align-items: center; }
.phobos-header__nav a {
  color:       rgba(255,255,255,.85);
  padding:     8px 14px;
  border-radius: var(--radius-sm);
  font-size:   0.9rem;
  font-weight: 500;
  transition:  all .2s;
}
.phobos-header__nav a:hover { background: rgba(255,255,255,.1); color: #fff; }

.phobos-header__search {
  flex:          1;
  max-width:     400px;
  position:      relative;
}
.phobos-header__search input {
  width:         100%;
  padding:       10px 16px 10px 40px;
  border-radius: 999px;
  border:        none;
  background:    rgba(255,255,255,.12);
  color:         #fff;
  font-size:     0.9rem;
  outline:       none;
}
.phobos-header__search input::placeholder { color: rgba(255,255,255,.5); }
.phobos-header__search input:focus { background: rgba(255,255,255,.2); }
.phobos-header__search-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,.6);
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
.phobos-footer {
  background:   var(--color-primary);
  color:        rgba(255,255,255,.7);
  padding:      48px 0 24px;
  margin-top:   80px;
}
.phobos-footer a { color: rgba(255,255,255,.7); }
.phobos-footer a:hover { color: #fff; }
.phobos-footer__grid {
  display:               grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap:                   var(--gap);
  margin-bottom:         32px;
}
.phobos-footer__title {
  color:         #fff;
  font-size:     0.9rem;
  font-weight:   700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.phobos-footer__links { list-style: none; }
.phobos-footer__links li { margin-bottom: 8px; font-size: 0.875rem; }
.phobos-footer__bottom {
  border-top:  1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  text-align:  center;
  font-size:   0.8rem;
}

/* ── Cards de curso ────────────────────────────────────────────────────────── */
.phobos-card {
  background:    var(--color-white);
  border-radius: var(--radius-md);
  box-shadow:    var(--shadow-sm);
  overflow:      hidden;
  transition:    transform .25s ease, box-shadow .25s ease;
  display:       flex;
  flex-direction: column;
}
.phobos-card:hover {
  transform:  translateY(-4px);
  box-shadow: var(--shadow-md);
}

.phobos-card__thumb {
  aspect-ratio: 16/9;
  overflow:     hidden;
}
.phobos-card__thumb img {
  width:      100%;
  height:     100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.phobos-card:hover .phobos-card__thumb img { transform: scale(1.06); }

.phobos-card__body {
  padding: 16px;
  flex:    1;
  display: flex;
  flex-direction: column;
}
.phobos-card__category {
  font-size:     0.75rem;
  font-weight:   600;
  text-transform: uppercase;
  color:         var(--color-accent);
  letter-spacing: .8px;
  margin-bottom: 6px;
}
.phobos-card__title {
  font-size:     1rem;
  font-weight:   700;
  color:         var(--color-primary);
  margin-bottom: 8px;
  display:       -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow:      hidden;
}
.phobos-card__instructor { font-size: 0.8rem; color: var(--color-muted); margin-bottom: 8px; }
.phobos-card__meta {
  display:        flex;
  align-items:    center;
  gap:            12px;
  font-size:      0.8rem;
  color:          var(--color-muted);
  margin-bottom:  12px;
}
.phobos-card__price {
  font-size:   1.1rem;
  font-weight: 700;
  color:       var(--color-primary);
  margin-top:  auto;
}

/* ── Barra de progreso ─────────────────────────────────────────────────────── */
.phobos-progress {
  height:        8px;
  background:    var(--color-border);
  border-radius: 999px;
  overflow:      hidden;
  margin:        8px 0;
}
.phobos-progress__bar {
  height:        100%;
  background:    var(--color-success);
  border-radius: 999px;
  transition:    width .5s ease;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .phobos-header__search { display: none; }
  .phobos-header__nav a  { padding: 6px 10px; font-size: .85rem; }
}

@media (max-width: 480px) {
  :root { --gap: 16px; }
}