/* ============================================================
   Kodex Studio — sistema visual, animaciones (CSS vanilla)
   ============================================================ */

:root {
    --bg-primary:   #0A0A0F;
    --bg-secondary: #0D0D14;
    --bg-card:      #111118;
    --accent:       #6C63FF;
    --accent-cyan:  #00D4FF;
    --text-primary: #F0F0F8;
    --text-muted:   #8888AA;
    --border:       #1E1E2E;
    --gradient:     linear-gradient(135deg, #6C63FF, #00D4FF);
    --ease:         cubic-bezier(0.16, 1, 0.3, 1);
    --nav-h:        68px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .kodex-display {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
}

a { color: inherit; text-decoration: none; }

.kodex-grad-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ===== Layout helpers ===== */
#kodex-main { padding-top: var(--nav-h); }
.kodex-container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; }

/* ============================================================
   CURSOR PERSONALIZADO (solo desktop)
   ============================================================ */
#kodex-cursor {
    position: fixed;
    top: 0; left: 0;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--accent);
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: screen;
    opacity: 0;
    transition: width .25s var(--ease), height .25s var(--ease), background .25s, opacity .25s;
    will-change: transform;
}
#kodex-cursor.is-active { opacity: 1; }
#kodex-cursor.is-hover { width: 32px; height: 32px; background: var(--accent-cyan); opacity: .6; }

@media (min-width: 769px) {
    body.kodex-has-cursor,
    body.kodex-has-cursor a,
    body.kodex-has-cursor button,
    body.kodex-has-cursor .kodex-card { cursor: none; }
}

/* ============================================================
   NAVBAR
   ============================================================ */
.kodex-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background .3s ease;
}
.kodex-nav.is-scrolled { background: rgba(10, 10, 15, 0.97); }
.kodex-nav__inner {
    height: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.kodex-nav__logo {
    display: flex;
    align-items: center;
    gap: .55rem;
    white-space: nowrap;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
}
.kodex-nav__mark {
    display: grid;
    place-items: center;
    width: 34px; height: 34px;
    border-radius: 9px;
    background: var(--gradient);
    color: #fff;
    flex: 0 0 auto;
}
.kodex-nav__mark svg { width: 18px; height: 18px; }

/* ============================================================
   BOTONES
   ============================================================ */
.kodex-btn-primary,
.kodex-btn-secondary,
.kodex-btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .8rem 1.6rem;
    border-radius: 999px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: .95rem;
    cursor: pointer;
    transition: transform .25s var(--ease), box-shadow .3s ease, background .3s ease, border-color .3s ease, color .3s ease;
}

.kodex-btn-primary {
    background: var(--gradient);
    color: #fff;
    border: none;
    animation: kodexCtaPulse 3.5s ease-in-out infinite;
}
.kodex-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 32px rgba(108, 99, 255, .6);
    animation-play-state: paused;
}

.kodex-btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.kodex-btn-secondary:hover { border-color: var(--accent); transform: translateY(-2px); }

.kodex-btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent);
    padding: .55rem 1.2rem;
    font-size: .9rem;
}
.kodex-btn-outline:hover { background: var(--gradient); border-color: transparent; }

@keyframes kodexCtaPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(108, 99, 255, 0); }
    50%      { box-shadow: 0 0 24px 0 rgba(108, 99, 255, .45); }
}

/* ============================================================
   BADGE
   ============================================================ */
.kodex-badge {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .45rem 1rem;
    border-radius: 999px;
    background: var(--border);
    color: var(--text-primary);
    font-size: .85rem;
}
.kodex-badge__dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #22C55E;
    animation: kodexDot 2s ease-in-out infinite;
}
@keyframes kodexDot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, .5); }
    50%      { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

/* ============================================================
   HERO
   ============================================================ */
.kodex-hero {
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
    padding: 5.5rem 0 4.5rem;
    text-align: center;
}
.kodex-hero__glow {
    position: absolute;
    top: -10%; left: 50%;
    transform: translateX(-50%);
    width: 700px; height: 500px;
    background: radial-gradient(circle, rgba(108, 99, 255, .18), transparent 60%);
    pointer-events: none;
    filter: blur(40px);
}
.kodex-hero__inner { position: relative; max-width: 860px; margin: 0 auto; padding: 0 1.5rem; }

.kodex-hero__title {
    margin: 1.6rem 0 0;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    letter-spacing: -0.02em;
}
.kodex-hero__title .kodex-words { display: block; }

.kodex-hero__subtitle {
    margin: 1.4rem auto 0;
    max-width: 620px;
    color: var(--text-muted);
    font-size: 1.1rem;
}
.kodex-hero__ctas {
    margin-top: 2.2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.kodex-hero__social { margin-top: 3.5rem; }
.kodex-hero__social > p { color: var(--text-muted); font-size: .85rem; margin: 0 0 1.2rem; }
.kodex-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2.5rem;
    color: var(--text-muted);
}
.kodex-logo {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    transition: color .3s ease;
}
.kodex-logo:hover { color: var(--text-primary); }
.kodex-logo svg { width: 20px; height: 20px; }

/* ===== Kinetic typography ===== */
.word { display: inline-block; overflow: hidden; vertical-align: bottom; }
.word-inner {
    display: inline-block;
    transform: translateY(110%);
    opacity: 0;
    transition: transform .7s var(--ease), opacity .7s var(--ease);
}
.kodex-words.is-revealed .word-inner { transform: translateY(0); opacity: 1; }
.kodex-line--grad .word-inner {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ============================================================
   STATS
   ============================================================ */
.kodex-stats { background: var(--bg-secondary); padding: 4rem 0; }
.kodex-stats__inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}
.kodex-stat__num {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800;
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    line-height: 1;
}
.kodex-stat__label { margin-top: .6rem; color: var(--text-muted); font-size: .95rem; }

/* ============================================================
   SERVICIOS
   ============================================================ */
.kodex-services { background: var(--bg-primary); padding: 4.5rem 0 5rem; }
.kodex-services__inner { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; text-align: center; }
.kodex-eyebrow {
    display: inline-block;
    color: var(--accent);
    font-size: .8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .18em;
}
.kodex-section-title { margin: .8rem 0 0; font-size: clamp(1.8rem, 4vw, 2.6rem); }

.kodex-cards {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    text-align: left;
}
.kodex-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2rem;
    transition: transform .3s var(--ease), border-color .3s ease, box-shadow .3s ease;
}
.kodex-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(108, 99, 255, .18);
}
.kodex-card--featured { border-color: var(--accent); position: relative; }
.kodex-card--featured::before {
    content: "Más popular";
    position: absolute;
    top: -11px; left: 2rem;
    background: var(--gradient);
    color: #fff;
    font-size: .7rem;
    font-weight: 600;
    padding: .25rem .8rem;
    border-radius: 999px;
}
.kodex-card__icon {
    font-size: 2rem;
    display: inline-block;
    transition: transform .35s var(--ease);
}
.kodex-card:hover .kodex-card__icon { transform: scale(1.15) rotate(5deg); }
.kodex-card__title { margin: 1rem 0 .5rem; font-size: 1.3rem; }
.kodex-card__desc { color: var(--text-muted); font-size: .95rem; margin: 0 0 1.4rem; }
.kodex-card__link { color: var(--accent); font-weight: 500; font-size: .9rem; }
.kodex-card__link:hover { color: var(--accent-cyan); }

/* ============================================================
   PROYECTOS
   ============================================================ */
.kodex-projects { background: var(--bg-secondary); padding: 4.5rem 0 5rem; }
.kodex-projects__inner { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; text-align: center; }
.kodex-project-grid {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    text-align: left;
}
.kodex-project {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    transition: transform .3s var(--ease), border-color .3s ease, box-shadow .3s ease;
}
.kodex-project:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px rgba(108, 99, 255, .18);
}
.kodex-project__media {
    aspect-ratio: 16 / 9;
    display: grid;
    place-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(108, 99, 255, .22), rgba(0, 212, 255, .08));
}
.kodex-project__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.kodex-project:hover .kodex-project__media img { transform: scale(1.05); }
.kodex-project__letter { font-family: 'Space Grotesk', sans-serif; font-weight: 800; font-size: 2.6rem; color: rgba(108, 99, 255, .45); }
.kodex-project__body { padding: 1.5rem; }
.kodex-tag {
    display: inline-block;
    margin-bottom: .6rem;
    padding: .2rem .7rem;
    border-radius: 999px;
    background: rgba(108, 99, 255, .15);
    color: var(--accent);
    font-size: .7rem;
    font-weight: 600;
}
.kodex-project__title { font-size: 1.2rem; margin: 0 0 .4rem; }
.kodex-project__desc { color: var(--text-muted); font-size: .9rem; margin: 0; }

/* Portadas diseñadas (sin imagen): degradado + glow + patrón + ícono + stack */
.kodex-cover { position: relative; overflow: hidden; }
.kodex-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 16px 16px;
    pointer-events: none;
}
.kodex-cover--1 { background: radial-gradient(120% 120% at 28% 18%, rgba(108, 99, 255, .40), transparent 60%), linear-gradient(135deg, #161322, #0c1622); }
.kodex-cover--2 { background: radial-gradient(120% 120% at 72% 18%, rgba(0, 212, 255, .34), transparent 60%), linear-gradient(135deg, #0c1622, #14101f); }
.kodex-cover--3 { background: radial-gradient(120% 120% at 50% 8%, rgba(236, 72, 153, .30), transparent 60%), linear-gradient(135deg, #1a1020, #0d1320); }
.kodex-cover__icon {
    position: relative;
    z-index: 1;
    font-size: 2.9rem;
    line-height: 1;
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, .45));
}
.kodex-cover__tech {
    position: absolute;
    z-index: 1;
    bottom: 12px;
    left: 14px;
    right: 14px;
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .02em;
    color: rgba(240, 240, 248, .9);
    text-align: left;
}

/* ============================================================
   TESTIMONIOS
   ============================================================ */
.kodex-testimonials { background: var(--bg-primary); padding: 4.5rem 0 5rem; }
.kodex-testimonials__inner { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; text-align: center; }
.kodex-testimonial-grid {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    text-align: left;
}
.kodex-testimonial {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2rem;
}
.kodex-testimonial__stars { color: #FBBF24; letter-spacing: 2px; font-size: 1rem; }
.kodex-testimonial__quote { margin: 1rem 0 0; flex: 1; color: #C8C8DA; font-size: .98rem; line-height: 1.7; }
.kodex-testimonial__author { margin-top: 1.5rem; display: flex; align-items: center; gap: .8rem; }
.kodex-testimonial__avatar {
    display: grid;
    place-items: center;
    width: 44px; height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(108, 99, 255, .25), rgba(0, 212, 255, .15));
    color: var(--accent);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
}
.kodex-testimonial__name { font-weight: 600; color: var(--text-primary); }
.kodex-testimonial__role { font-size: .85rem; color: var(--text-muted); }

/* ============================================================
   SEPARADORES (gradiente suave entre fondos contiguos)
   ============================================================ */
.kodex-separator { height: 80px; width: 100%; }
.kodex-separator--primary-to-secondary { background: linear-gradient(var(--bg-primary), var(--bg-secondary)); }
.kodex-separator--secondary-to-primary { background: linear-gradient(var(--bg-secondary), var(--bg-primary)); }

/* ============================================================
   FOOTER
   ============================================================ */
.kodex-footer { background: var(--bg-secondary); border-top: 1px solid var(--border); padding: 3rem 0; }
.kodex-footer__inner {
    max-width: 1120px; margin: 0 auto; padding: 0 1.5rem;
    display: flex; flex-wrap: wrap; gap: 1.5rem;
    align-items: center; justify-content: space-between;
    color: var(--text-muted); font-size: .9rem;
}
.kodex-footer a:hover { color: var(--text-primary); }
.kodex-footer__links { display: flex; gap: 1.5rem; flex-wrap: wrap; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.kodex-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.kodex-reveal.visible { opacity: 1; transform: none; }
.kodex-reveal[data-delay="100"] { transition-delay: .1s; }
.kodex-reveal[data-delay="200"] { transition-delay: .2s; }
.kodex-reveal[data-delay="300"] { transition-delay: .3s; }
.kodex-reveal[data-delay="400"] { transition-delay: .4s; }
.kodex-reveal[data-delay="500"] { transition-delay: .5s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    #kodex-cursor { display: none; }
    .kodex-stats__inner { grid-template-columns: 1fr; gap: 2.2rem; }
    .kodex-hero__ctas { flex-direction: column; align-items: stretch; }
    .kodex-hero__ctas .kodex-btn-primary,
    .kodex-hero__ctas .kodex-btn-secondary { width: 100%; }
    .kodex-separator { height: 60px; }
}

/* ============================================================
   PREFERENCIA: MENOS MOVIMIENTO
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .kodex-reveal { opacity: 1; transform: none; transition: none; }
    .word-inner { transform: none; opacity: 1; transition: none; }
    .kodex-badge__dot,
    .kodex-btn-primary { animation: none; }
    #kodex-cursor { display: none; }
    html { scroll-behavior: auto; }
}