/*
 * ============================================================
 *  aprendeconjc.com.mx — Estilos compartidos
 *  styles.css  |  Incluir en todas las páginas del portal
 * ============================================================
 */

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

/* ── VARIABLES GLOBALES ── */
:root {
    --bg:           #060c1a;
    --bg2:          #0c1428;
    --bg3:          #111d35;
    --amber:        #f59e0b;
    --amber2:       #fbbf24;
    --amber-dim:    #7c5008;
    --cyan:         #22d3ee;
    --red:          #ef4444;
    --text:         #e8edf5;
    --muted:        #6b7fa3;
    --border:       rgba(255,255,255,.07);
    --border-hover: rgba(245,158,11,.3);
}

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

body {
    font-family: 'Lato', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── GRID OVERLAY (fondo de cuadrícula decorativa) ── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(34,211,238,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34,211,238,.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* ── ANIMACIONES ── */
@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}
@keyframes fadeInUp {
    from { transform: translateY(30px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulseDot {
    0%,100% { opacity: 1;  transform: scale(1); }
    50%     { opacity: .4; transform: scale(.8); }
}
@keyframes slideInRight {
    from { transform: translateX(120%); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

/* ── BARRA DE PROGRESO DE SCROLL ── */
.scroll-indicator {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255,255,255,.05);
    z-index: 1000;
}
.scroll-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--amber), var(--cyan));
    width: 0%;
    transition: width 0.1s ease;
}

/* ══════════════════════════════════════════
   NAVEGACIÓN COMPARTIDA  (.site-nav)
   Usada en: index.html, curso-iso27005.html
   y cualquier página futura del portal.
   ══════════════════════════════════════════ */
.site-nav {
    position: sticky;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 18px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(6,12,26,.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    animation: slideDown .6s ease-out;
}

/* Logo */
.nav-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 700;
    color: var(--amber);
    letter-spacing: .08em;
    text-transform: uppercase;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0;
}
.nav-logo::before {
    content: '> ';
    color: var(--cyan);
    white-space: pre;
}
.nav-logo span { color: var(--muted); }

/* Contenedor del lado derecho del nav */
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

/* Enlace de navegación simple (páginas de índice) */
.nav-link {
    font-family: 'Lato', sans-serif;
    font-size: 13px;
    font-weight: 400;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: .03em;
    transition: color .2s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--amber); }

/* Enlace "← Volver" (páginas internas de cursos) */
.nav-back {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: .06em;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color .2s;
    text-transform: uppercase;
}
.nav-back:hover { color: var(--cyan); }

/* Botón CTA en nav */
.nav-cta {
    font-family: 'Lato', sans-serif;
    font-size: 13px;
    font-weight: 700;
    padding: 9px 22px;
    border-radius: 6px;
    background: var(--amber);
    color: #060c1a;
    text-decoration: none;
    letter-spacing: .03em;
    transition: background .2s, transform .15s;
    white-space: nowrap;
}
.nav-cta:hover { background: var(--amber2); transform: translateY(-1px); }

/* ── CONTAINER ── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

/* ── ETIQUETAS Y TÍTULOS DE SECCIÓN ── */
.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 14px;
}

.section-title {
    font-family: 'Syne', sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -.02em;
    margin-bottom: 10px;
    line-height: 1.1;
    display: inline-block;
}
.section-title em {
    font-style: normal;
    color: var(--amber);
}

/* ── HERO TAG (variantes por color) ── */
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 4px;
    margin-bottom: 28px;
    width: fit-content;
    border: 1px solid;
}
.hero-tag::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    animation: pulseDot 2s infinite;
    flex-shrink: 0;
}

/* Variante cian (index.html) */
.hero-tag--cyan {
    color: var(--cyan);
    border-color: rgba(34,211,238,.25);
    background: rgba(34,211,238,.06);
}
.hero-tag--cyan::before { background: var(--cyan); }

/* Variante ámbar (páginas de cursos) */
.hero-tag--amber {
    color: var(--amber);
    border-color: rgba(245,158,11,.3);
    background: rgba(245,158,11,.08);
}
.hero-tag--amber::before { background: var(--amber); }

/* ── DIVISOR ── */
.divider,
.section-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}

/* ── FOOTER ── */
footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 32px 40px;
    text-align: center;
    margin-top: 60px;
}
.footer-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: .8rem;
    color: var(--muted);
}
footer a { color: var(--amber); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── CONTADOR DE VISITANTES ── */
.visitor-counter {
    position: fixed;
    bottom: 2rem; right: 2rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 18px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 90;
    animation: slideInRight .6s ease-out;
}
.visitor-counter-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: .7rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-bottom: 4px;
}
.visitor-counter-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--amber);
}

/* ── RESPONSIVE COMPARTIDO ── */
@media (max-width: 768px) {
    .site-nav       { padding: 14px 20px; }
    .nav-links      { gap: 16px; }
    .container      { padding: 0 20px; }
    .visitor-counter { bottom: 1rem; right: 1rem; padding: .75rem 1rem; }
    .visitor-counter-number { font-size: 1.1rem; }
    footer          { padding: 24px 20px; }
}

/* ── HAMBURGER BUTTON ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    padding: 7px;
    transition: border-color .2s;
    flex-shrink: 0;
}
.nav-hamburger:hover { border-color: rgba(245,158,11,.4); }
.nav-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform .25s ease, opacity .2s ease;
    transform-origin: center;
}

/* Estado abierto: animar a X */
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MENÚ MÓVIL DESPLEGABLE ── */
@media (max-width: 640px) {
    .nav-hamburger { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        background: rgba(6,12,26,.97);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 8px 0;
        z-index: 99;
        animation: slideDown .2s ease-out;
    }
    .nav-links.open { display: flex; }

    .nav-link,
    .nav-back {
        width: 100%;
        padding: 13px 24px;
        font-size: 13px;
        border-bottom: 1px solid var(--border);
    }
    .nav-link:last-child,
    .nav-back:last-child { border-bottom: none; }

    .nav-cta {
        margin: 12px 24px;
        width: calc(100% - 48px);
        text-align: center;
        justify-content: center;
    }
}