/* ============================================================
   CellView — base.css
   Variables, reset, tipografía, utilitarios, animaciones
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;700;800&display=swap');

/* --- Variables --- */
:root {
    --navy:       #0B1736;
    --navy-mid:   #132050;
    --sky:        #3B9ECC;
    --sky-light:  #6DBDE0;
    --sky-dim:    #1A6FA0;
    --gold:       #C9A84C;
    --gold-light: #E4C97A;
    --bio:        #1A8C5B;
    --bio-glow:   rgba(26,140,91,0.25);
    --white:      #FFFFFF;
    --gray-50:    #F8F9FC;
    --gray-100:   #EEF1F8;
    --gray-300:   #C8D0E0;
    --gray-500:   #7A849E;
    --gray-700:   #3A4260;
    --text:       #0D1424;
    --radius:     14px;
    --radius-lg:  22px;

    /* Glassmorphism */
    --glass-bg:     rgba(19,32,80,0.55);
    --glass-border: rgba(59,158,204,0.18);
    --glass-blur:   blur(18px);

    /* Sombras */
    --shadow-sm:  0 2px 8px rgba(0,0,0,0.25);
    --shadow-md:  0 6px 24px rgba(0,0,0,0.35);
    --shadow-lg:  0 16px 48px rgba(0,0,0,0.45);

    /* Transiciones */
    --t-fast:   150ms ease;
    --t-base:   250ms ease;
    --t-slow:   400ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--navy);
    color: var(--gray-100);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

img, video, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--sky);
    text-decoration: none;
    transition: color var(--t-fast);
}
a:hover { color: var(--sky-light); }

button {
    font-family: inherit;
    cursor: pointer;
}

ul, ol { list-style: none; }

/* --- Tipografía --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.2;
    color: var(--white);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; font-weight: 700; }

p {
    color: var(--gray-300);
    font-size: 1rem;
    line-height: 1.7;
}

.lead {
    font-size: 1.15rem;
    color: var(--gray-100);
    font-weight: 400;
}

.label {
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--sky);
}

/* --- Mesh gradient background --- */
.bg-mesh {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%,  rgba(26,111,160,0.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 90%,  rgba(26,140,91,0.12) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 60% 40%,  rgba(59,158,204,0.07) 0%, transparent 50%),
        var(--navy);
    pointer-events: none;
}

/* --- Contenedores --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

/* --- Glassmorphism card --- */
.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.card {
    background: var(--navy-mid);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: border-color var(--t-base), box-shadow var(--t-base);
}

.card:hover {
    border-color: rgba(59,158,204,0.35);
    box-shadow: var(--shadow-md);
}

/* --- Botones --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .65rem 1.4rem;
    border-radius: var(--radius);
    border: none;
    font-family: inherit;
    font-size: .9rem;
    font-weight: 700;
    text-decoration: none;
    transition: opacity var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
    white-space: nowrap;
    cursor: pointer;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--sky);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(59,158,204,0.3);
}
.btn-bio {
    background: var(--bio);
    color: var(--white);
    box-shadow: 0 4px 16px var(--bio-glow);
}
.btn-gold {
    background: var(--gold);
    color: var(--navy);
}
.btn-ghost {
    background: transparent;
    color: var(--gray-100);
    border: 1.5px solid var(--gray-700);
}
.btn-ghost:hover { border-color: var(--sky); color: var(--sky); opacity: 1; }

.btn-sm {
    padding: .4rem .9rem;
    font-size: .8rem;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .25rem .7rem;
    border-radius: 100px;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .04em;
}
.badge-sky  { background: rgba(59,158,204,.15);  color: var(--sky-light); }
.badge-bio  { background: rgba(26,140,91,.18);   color: #4ade80; }
.badge-gold { background: rgba(201,168,76,.18);  color: var(--gold-light); }
.badge-gray { background: rgba(122,132,158,.15); color: var(--gray-300); }

/* --- Divisor --- */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-700), transparent);
    border: none;
    margin: 2rem 0;
}

/* --- Scroll reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.in {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger para hijos directos */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 80ms; }
.stagger > *:nth-child(3) { transition-delay: 160ms; }
.stagger > *:nth-child(4) { transition-delay: 240ms; }
.stagger > *:nth-child(5) { transition-delay: 320ms; }
.stagger > *:nth-child(6) { transition-delay: 400ms; }

/* --- Animaciones --- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: .5; }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position:  200% center; }
}

/* --- Loader --- */
.spinner {
    width: 22px;
    height: 22px;
    border: 2px solid var(--gray-700);
    border-top-color: var(--sky);
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

/* --- Utilidades --- */
.text-sky   { color: var(--sky); }
.text-bio   { color: var(--bio); }
.text-gold  { color: var(--gold); }
.text-muted { color: var(--gray-500); }
.text-white { color: var(--white); }
.text-sm    { font-size: .875rem; }
.text-xs    { font-size: .75rem; }

.fw-800 { font-weight: 800; }
.fw-700 { font-weight: 700; }
.fw-600 { font-weight: 600; }

.d-flex   { display: flex; }
.d-grid   { display: grid; }
.d-none   { display: none; }
.d-block  { display: block; }

.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: .5rem; }
.gap-md { gap: 1rem; }
.gap-lg { 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; }
.mb-4 { margin-bottom: 2rem; }

.overflow-clip { overflow: clip; }

/* --- IntersectionObserver init (JS añade class .in) --- */
/* Aplicar en JS:
   const io = new IntersectionObserver(entries => {
       entries.forEach(e => { if(e.isIntersecting) e.target.classList.add('in'); });
   }, { threshold: 0.12 });
   document.querySelectorAll('.reveal').forEach(el => io.observe(el));
*/