/* ============================================================
   KRËO — Main Stylesheet
   Sistema de diseño: Dark Mode, editorial, minimalista.
   ============================================================ */

/* ── 1. TOKENS DE DISEÑO (Custom Properties) ─────────────────── */
:root {
    /* Colores */
    --color-bg:         #0D0D0D;
    --color-bg-alt:     #111111;
    --color-surface:    #161616;
    --color-border:     rgba(242, 241, 236, 0.08);

    --color-text:       #F2F1EC;
    --color-text-muted: rgba(242, 241, 236, 0.55);
    --color-text-faint: rgba(242, 241, 236, 0.25);

    --color-accent:     #D9531E;
    --color-accent-alt: #E05300;
    --color-accent-glow:rgba(217, 83, 30, 0.35);

    /* Tipografía */
    --font-display:  'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
    --font-body:     'Inter', 'Helvetica Neue', Arial, sans-serif;

    /* Tamaños de fuente fluidos */
    --fs-xs:    clamp(0.7rem,   1vw, 0.8rem);
    --fs-sm:    clamp(0.85rem,  1.2vw, 0.9rem);
    --fs-base:  clamp(1rem,     1.5vw, 1.1rem);
    --fs-md:    clamp(1.1rem,   1.8vw, 1.25rem);
    --fs-lg:    clamp(1.3rem,   2.5vw, 1.75rem);
    --fs-xl:    clamp(1.8rem,   4vw,   2.75rem);
    --fs-2xl:   clamp(2.5rem,   6vw,   4rem);
    --fs-3xl:   clamp(3.5rem,   9vw,   6.5rem);
    --fs-4xl:   clamp(4.5rem,   12vw,  9rem);

    /* Espaciado */
    --space-xs:   0.5rem;
    --space-sm:   1rem;
    --space-md:   1.5rem;
    --space-lg:   2.5rem;
    --space-xl:   2.5rem;
    --space-2xl:  3.5rem;
    --space-3xl:  5rem;

    /* Contenedor */
    --container-max:    1280px;
    --container-pad:    clamp(1.25rem, 5vw, 4rem);

    /* Transiciones */
    --ease-smooth:  cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-spring:  cubic-bezier(0.34, 1.56, 0.64, 1);
    --dur-fast:     200ms;
    --dur-base:     350ms;
    --dur-slow:     600ms;

    /* Z-index */
    --z-navbar:     100;
    --z-overlay:    10;
}

/* ── 2. RESET & BASE ──────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin:  0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-bg);
    color:            var(--color-text);
    font-family:      var(--font-body);
    font-size:        var(--fs-base);
    line-height:      1.65;
    letter-spacing:   0.01em;
    overflow-x:       hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Marca de agua sutil del logo en el fondo de la web */
body::before {
    content: '';
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vw;
    background-image: url('../../kreo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.10;
    pointer-events: none;
    z-index: -2;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor:     pointer;
    border:     none;
    background: none;
    font:       inherit;
}

/* Accesibilidad: screen-reader only */
.sr-only {
    position:   absolute;
    width:      1px;
    height:     1px;
    padding:    0;
    margin:     -1px;
    overflow:   hidden;
    clip:       rect(0, 0, 0, 0);
    white-space: nowrap;
    border:     0;
}

/* Selection highlight */
::selection {
    background: var(--color-accent);
    color:      #fff;
}

/* ── 3. UTILIDADES ────────────────────────────────────────────── */
.text-accent   { color: var(--color-accent); }
.text-muted    { color: var(--color-text-muted); }
.logo-umlaut   { color: var(--color-accent); }

/* Container */
.hero__container,
.manifiesto__container,
.proyectos__container,
.footer__container {
    max-width: var(--container-max);
    margin:    0 auto;
    padding:   0 var(--container-pad);
}

/* Section label */
.section-label {
    display:     flex;
    align-items: center;
    gap:         var(--space-sm);
    margin-bottom: var(--space-md);
}

.section-label__line {
    display:          block;
    width:            2.5rem;
    height:           1px;
    background-color: var(--color-accent);
    flex-shrink:      0;
}

.section-label__text {
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-text-muted);
}

/* Section title */
.section-title {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    letter-spacing: -0.02em;
    line-height:    1.05;
    text-transform: uppercase;
    margin-bottom:  var(--space-xl);
}

/* Section header */
.section-header {
    margin-bottom: var(--space-xl);
}

/* ── 4. BOTONES ───────────────────────────────────────────────── */
.btn {
    display:        inline-flex;
    align-items:    center;
    gap:            0.5rem;
    font-family:    var(--font-display);
    font-size:      var(--fs-sm);
    font-weight:    600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding:        0.85rem 2rem;
    border-radius:  2px;
    transition:     all var(--dur-base) var(--ease-smooth);
    white-space:    nowrap;
    position:       relative;
    overflow:       hidden;
}

/* Primary: orange fill */
.btn--primary {
    background: var(--color-accent);
    color:      #fff;
    border:     2px solid var(--color-accent);
}

.btn--primary::before {
    content:    '';
    position:   absolute;
    inset:      0;
    background: var(--color-accent-alt);
    transform:  translateX(-101%);
    transition: transform var(--dur-base) var(--ease-smooth);
    z-index:    0;
}

.btn--primary span,
.btn--primary svg { position: relative; z-index: 1; }

.btn--primary:hover::before { transform: translateX(0); }
.btn--primary:hover {
    box-shadow: 0 0 30px var(--color-accent-glow);
}

/* Ghost: transparent + white border */
.btn--ghost {
    background:  transparent;
    color:       var(--color-text);
    border:      2px solid rgba(242, 241, 236, 0.25);
}

.btn--ghost:hover {
    border-color: var(--color-text);
    background:   rgba(242, 241, 236, 0.05);
}

/* Outline: transparent + accent border */
.btn--outline {
    background:  transparent;
    color:       var(--color-accent);
    border:      2px solid var(--color-accent);
}

.btn--outline:hover {
    background: var(--color-accent);
    color:      #fff;
    box-shadow: 0 0 25px var(--color-accent-glow);
}

.btn__icon {
    width:  1.1em;
    height: 1.1em;
    transition: transform var(--dur-base) var(--ease-spring);
}

.btn:hover .btn__icon { transform: translateX(4px); }

/* ── 5. NAVBAR ────────────────────────────────────────────────── */
.navbar {
    position:         fixed;
    top:              0;
    left:             0;
    right:            0;
    z-index:          var(--z-navbar);
    padding:          0.6rem 0;
    transition:       background var(--dur-slow) var(--ease-smooth),
                      padding    var(--dur-base) var(--ease-smooth),
                      box-shadow var(--dur-base) var(--ease-smooth);
}

.navbar.is-scrolled {
    background:  rgba(13, 13, 13, 0.94);
    padding:     0.35rem 0;
    box-shadow:  0 1px 0 var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.navbar__container {
    max-width:   var(--container-max);
    margin:      0 auto;
    padding:     0 var(--container-pad);
    display:     flex;
    align-items: center;
    justify-content: space-between;
    gap:         var(--space-md);
}

/* Logo */
.navbar__logo {
    display:     flex;
    align-items: center;
}

.logo-img {
    height: 110px;
    width: auto;
    max-width: 380px;
    object-fit: contain;
    display: block;
    mix-blend-mode: screen;
    transition: opacity var(--dur-fast), transform var(--dur-fast);
}

.logo-img:hover {
    opacity: 0.85;
}

.logo-text {
    font-family:    var(--font-display);
    font-size:      1.5rem;
    font-weight:    700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color:          var(--color-text);
    transition:     opacity var(--dur-fast);
}

.logo-text:hover { opacity: 0.8; }

/* Nav Menu */
.navbar__menu {
    display:     flex;
    align-items: center;
    gap:         var(--space-xl);
}

.navbar__list {
    display:     flex;
    align-items: center;
    gap:         var(--space-lg);
}

.navbar__link {
    font-family:    var(--font-display);
    font-size:      var(--fs-sm);
    font-weight:    500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color:          var(--color-text-muted);
    transition:     color var(--dur-fast);
    position:       relative;
    padding-bottom: 2px;
}

.navbar__link::after {
    content:          '';
    position:         absolute;
    bottom:           -2px;
    left:             0;
    width:            0;
    height:           1px;
    background:       var(--color-accent);
    transition:       width var(--dur-base) var(--ease-smooth);
}

.navbar__link:hover          { color: var(--color-text); }
.navbar__link:hover::after   { width: 100%; }

/* Navbar CTA */
.navbar__cta {
    font-family:    var(--font-display);
    font-size:      var(--fs-sm);
    font-weight:    600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding:        0.55rem 1.25rem;
    border:         1.5px solid var(--color-accent);
    border-radius:  2px;
    color:          var(--color-accent);
    transition:     all var(--dur-fast);
    white-space:    nowrap;
}

.navbar__cta:hover {
    background: var(--color-accent);
    color:      #fff;
}

/* Hamburger (mobile) */
.navbar__toggle {
    display:        none;
    flex-direction: column;
    justify-content: center;
    gap:            5px;
    width:          2rem;
    height:         2rem;
    padding:        2px;
    z-index:        200;
}

.navbar__toggle span {
    display:          block;
    width:            100%;
    height:           1.5px;
    background-color: var(--color-text);
    transform-origin: center;
    transition:       transform var(--dur-base) var(--ease-smooth),
                      opacity   var(--dur-fast);
}

/* Toggle open state */
.navbar__toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.navbar__toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.navbar__toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── 6. HERO ──────────────────────────────────────────────────── */
.hero {
    position:   relative;
    min-height: 100svh;
    display:    flex;
    align-items: flex-end;
    padding-bottom: var(--space-3xl);
    overflow:   hidden;
}

/* Background */
.hero__bg {
    position: absolute;
    inset:    0;
    z-index:  0;
    background-color: var(--color-bg);
}

.hero-slideshow {
    position: absolute;
    inset:    0;
    z-index:  1;
}

.hero-slide {
    position: absolute;
    inset:    0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    filter: grayscale(40%) brightness(45%);
}

.hero-slide.is-active {
    opacity: 1;
}

.hero__bg-overlay {
    position:   absolute;
    inset:      0;
    z-index:    2;
    background: linear-gradient(
        135deg,
        rgba(217, 83, 30, 0.5) 0%,
        rgba(13, 13, 13, 0.95) 100%
    );
    mix-blend-mode: multiply;
}

/* Content */
.hero__container {
    position:       relative;
    z-index:        var(--z-overlay);
    padding-top:    calc(var(--space-3xl) + 5rem);
}

.hero__eyebrow {
    display:        block;
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-text-muted);
    margin-bottom:  var(--space-md);
}

.hero__title {
    font-family:    var(--font-display);
    font-size:      var(--fs-4xl);
    font-weight:    700;
    line-height:    0.95;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    color:          var(--color-text);
    margin-bottom:  var(--space-lg);
}

.hero__title--accent {
    color:             var(--color-accent);
    -webkit-text-stroke: 0px;
}

.hero__subtitle {
    font-size:      var(--fs-md);
    font-weight:    300;
    color:          var(--color-text-muted);
    line-height:    1.5;
    max-width:      42ch;
    margin-bottom:  var(--space-xl);
    letter-spacing: 0.02em;
}

.hero__actions {
    display:   flex;
    gap:       var(--space-md);
    flex-wrap: wrap;
}

/* Scroll indicator */
.hero__scroll {
    position:        absolute;
    bottom:          var(--space-xl);
    right:           var(--container-pad);
    z-index:         var(--z-overlay);
    display:         flex;
    flex-direction:  column;
    align-items:     center;
    gap:             var(--space-xs);
}

.hero__scroll-text {
    font-family:    var(--font-display);
    font-size:      0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-text-faint);
    writing-mode:   vertical-rl;
}

.hero__scroll-line {
    width:            1px;
    height:           3rem;
    background:       linear-gradient(to bottom, var(--color-accent), transparent);
    animation:        scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* ── 7. MANIFIESTO ────────────────────────────────────────────── */
.manifiesto {
    padding:    var(--space-3xl) 0;
    background: var(--color-bg-alt);
    position:   relative;
    overflow:   hidden;
}

/* Decorative background word */
.manifiesto::before {
    content:        'KRËO';
    position:       absolute;
    top:            50%;
    left:           50%;
    transform:      translate(-50%, -50%);
    font-family:    var(--font-display);
    font-size:      clamp(8rem, 25vw, 22rem);
    font-weight:    700;
    letter-spacing: -0.04em;
    color:          transparent;
    -webkit-text-stroke: 1px rgba(242,241,236,0.03);
    user-select:    none;
    pointer-events: none;
    white-space:    nowrap;
    z-index:        0;
}

.manifiesto__container {
    position: relative;
    z-index:  1;
}

.manifiesto__quote {
    border:  none;
    padding: 0;
    margin:  var(--space-xl) 0;
}

.manifiesto__quote-text {
    font-family:    var(--font-display);
    font-size:      var(--fs-3xl);
    font-weight:    700;
    line-height:    1.05;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    color:          var(--color-text);
}

.manifiesto__body {
    max-width:      65ch;
    margin:         var(--space-xl) 0;
    border-left:    2px solid var(--color-accent);
    padding-left:   var(--space-lg);
}

.manifiesto__text {
    color:         var(--color-text-muted);
    font-size:     var(--fs-md);
    font-weight:   300;
    line-height:   1.8;
    margin-bottom: var(--space-md);
}

.manifiesto__text:last-child { margin-bottom: 0; }

/* Stats */
.manifiesto__stats {
    display:   flex;
    gap:       var(--space-2xl);
    flex-wrap: wrap;
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top:  1px solid var(--color-border);
}

.stat {
    display:        flex;
    flex-direction: column;
    gap:            0.25rem;
}

.stat__number {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    color:          var(--color-accent);
    letter-spacing: -0.03em;
}

.stat__label {
    font-size:      var(--fs-sm);
    color:          var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight:    500;
}

/* ── 8. PROYECTOS GRID ────────────────────────────────────────── */
.proyectos {
    padding:    var(--space-3xl) 0;
    background: var(--color-bg);
}

/* Masonry-style grid */
.proyectos__grid {
    display:               grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows:        clamp(180px, 22vw, 320px);
    gap:                   2px;
    margin-bottom:         var(--space-xl);
}

/* Default card: 2 columns, 1 row */
.proyecto-card {
    grid-column: span 2;
    grid-row:    span 1;
    position:    relative;
    overflow:    hidden;
    cursor:      pointer;
}

/* Featured card: 3 columns, 2 rows */
.proyecto-card--featured {
    grid-column: span 3;
    grid-row:    span 2;
}

/* Media */
.proyecto-card__media {
    width:      100%;
    height:     100%;
    overflow:   hidden;
}

.proyecto-card__img {
    width:      100%;
    height:     100%;
    object-fit: cover;
    transition: transform var(--dur-slow) var(--ease-smooth),
                filter    var(--dur-slow) var(--ease-smooth);
    filter:     saturate(0.7) brightness(0.85);
}

/* Placeholder when no image */
.proyecto-card__placeholder {
    width:            100%;
    height:           100%;
    background:       var(--color-surface);
    display:          flex;
    align-items:      center;
    justify-content:  center;
    transition:       background var(--dur-base) var(--ease-smooth);
}

.proyecto-card__placeholder-label {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    color:          var(--color-text-faint);
    letter-spacing: 0.12em;
    user-select:    none;
}

/* Overlay */
.proyecto-card__overlay {
    position:        absolute;
    bottom:          0;
    left:            0;
    right:           0;
    padding:         var(--space-md) var(--space-md) var(--space-md);
    background:      linear-gradient(to top, rgba(13,13,13,0.95) 0%, transparent 100%);
    transform:       translateY(8px);
    opacity:         0;
    transition:      opacity  var(--dur-base) var(--ease-smooth),
                     transform var(--dur-base) var(--ease-smooth);
}

.proyecto-card__categoria {
    display:        block;
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-accent);
    margin-bottom:  0.25rem;
}

.proyecto-card__titulo {
    font-family:    var(--font-display);
    font-size:      var(--fs-lg);
    font-weight:    700;
    text-transform: uppercase;
    color:          var(--color-text);
    letter-spacing: -0.01em;
    line-height:    1.1;
}

/* Hover effects */
.proyecto-card:hover .proyecto-card__img {
    transform: scale(1.06);
    filter:    saturate(1) brightness(0.7);
}

.proyecto-card:hover .proyecto-card__placeholder {
    background: #1a1a1a;
}

.proyecto-card:hover .proyecto-card__overlay {
    opacity:   1;
    transform: translateY(0);
}

/* Border accent on hover */
.proyecto-card::after {
    content:    '';
    position:   absolute;
    inset:      0;
    border:     2px solid transparent;
    transition: border-color var(--dur-base) var(--ease-smooth);
    pointer-events: none;
    z-index:    2;
}

.proyecto-card:hover::after {
    border-color: rgba(217, 83, 30, 0.4);
}

/* CTA */
.proyectos__cta {
    display:         flex;
    justify-content: center;
    margin-top:      var(--space-xl);
}

/* ── 9. FOOTER ────────────────────────────────────────────────── */
.footer {
    background:    var(--color-surface);
    border-top:    1px solid var(--color-border);
    padding:       var(--space-2xl) 0 var(--space-lg);
}

.footer__top {
    display:               grid;
    grid-template-columns: 1fr 1fr;
    gap:                   var(--space-2xl);
    padding-bottom:        var(--space-xl);
    border-bottom:         1px solid var(--color-border);
    margin-bottom:         var(--space-lg);
}

/* Brand */
.footer__logo {
    font-family:    var(--font-display);
    font-size:      2rem;
    font-weight:    700;
    letter-spacing: 0.1em;
    color:          var(--color-text);
    display:        inline-block;
    margin-bottom:  var(--space-sm);
    transition:     opacity var(--dur-fast);
}

.footer__logo:hover { opacity: 0.75; }

.footer-logo-img {
    height: 130px;
    width: auto;
    max-width: 440px;
    object-fit: contain;
    display: block;
    mix-blend-mode: screen;
    transition: opacity var(--dur-fast);
}

.footer-logo-img:hover {
    opacity: 0.85;
}

.footer__tagline {
    color:         var(--color-text-muted);
    font-size:     var(--fs-sm);
    margin-bottom: var(--space-lg);
    font-weight:   300;
}

.footer__social {
    display:   flex;
    gap:       var(--space-md);
    flex-wrap: wrap;
}

.footer__social-link {
    display:     inline-flex;
    align-items: center;
    gap:         0.5rem;
    font-size:   var(--fs-sm);
    font-weight: 500;
    color:       var(--color-text-muted);
    transition:  color var(--dur-fast);
}

.footer__social-link svg {
    width:  1.2rem;
    height: 1.2rem;
    flex-shrink: 0;
}

.footer__social-link:hover { color: var(--color-accent); }

/* Newsletter */
.footer__newsletter-title {
    font-family:    var(--font-display);
    font-size:      var(--fs-sm);
    font-weight:    700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom:  0.5rem;
    color:          var(--color-text);
}

.footer__newsletter-text {
    color:         var(--color-text-muted);
    font-size:     var(--fs-sm);
    font-weight:   300;
    margin-bottom: var(--space-md);
}

/* Newsletter Form */
.newsletter-form__group {
    display:   flex;
    gap:       0;
    max-width: 460px;
}

.newsletter-form__input {
    flex:             1;
    background:       var(--color-bg);
    border:           1.5px solid var(--color-border);
    border-right:     none;
    color:            var(--color-text);
    font-family:      var(--font-body);
    font-size:        var(--fs-sm);
    padding:          0.75rem 1rem;
    border-radius:    2px 0 0 2px;
    outline:          none;
    transition:       border-color var(--dur-fast);
}

.newsletter-form__input::placeholder { color: var(--color-text-faint); }

.newsletter-form__input:focus {
    border-color: var(--color-accent);
}

.newsletter-form__btn {
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding:        0.75rem 1.25rem;
    background:     var(--color-accent);
    color:          #fff;
    border:         none;
    border-radius:  0 2px 2px 0;
    cursor:         pointer;
    transition:     background var(--dur-fast);
    white-space:    nowrap;
}

.newsletter-form__btn:hover { background: var(--color-accent-alt); }

.newsletter-form__privacy {
    margin-top: 0.6rem;
    font-size:  var(--fs-xs);
    color:      var(--color-text-faint);
}

/* Feedback messages */
.form-feedback {
    padding:       0.75rem 1rem;
    border-radius: 2px;
    font-size:     var(--fs-sm);
    margin-bottom: var(--space-md);
    border-left:   3px solid;
}

.form-feedback--success {
    background:   rgba(80, 200, 120, 0.08);
    border-color: #50c878;
    color:        #7debb0;
}

.form-feedback--error {
    background:   rgba(217, 83, 30, 0.08);
    border-color: var(--color-accent);
    color:        #f08060;
}

.form-feedback--info {
    background:   rgba(100, 160, 220, 0.08);
    border-color: #64a0dc;
    color:        #9bbfe8;
}

/* Footer bottom */
.footer__bottom {
    display:         flex;
    justify-content: space-between;
    align-items:     center;
    flex-wrap:       wrap;
    gap:             var(--space-sm);
}

.footer__copyright,
.footer__credits {
    font-size: var(--fs-xs);
    color:     var(--color-text-faint);
}

/* ── 10. RESPONSIVE ───────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
    .proyectos__grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .proyecto-card { grid-column: span 2; }
    .proyecto-card--featured { grid-column: span 4; grid-row: span 1; }
}

/* Mobile-large */
@media (max-width: 768px) {
    /* Navbar */
    .navbar__toggle { display: flex; }

    .navbar__menu {
        position:   fixed;
        inset:      0;
        flex-direction: column;
        justify-content: center;
        gap:        var(--space-xl);
        background: rgba(13, 13, 13, 0.98);
        backdrop-filter: blur(16px);
        transform:  translateX(100%);
        transition: transform var(--dur-slow) var(--ease-smooth);
        z-index:    150;
    }

    .navbar__menu.is-open { transform: translateX(0); }

    .navbar__list {
        flex-direction: column;
        gap:            var(--space-lg);
        text-align:     center;
    }

    .navbar__link { font-size: var(--fs-xl); }
    .navbar__cta  { font-size: var(--fs-md); padding: 1rem 2rem; }

    /* Hero */
    .hero {
        padding-bottom: var(--space-2xl);
        align-items:    center;
    }

    .hero__scroll { display: none; }

    /* Manifesto */
    .manifiesto__stats { gap: var(--space-xl); }

    /* Grid */
    .proyectos__grid {
        grid-template-columns: 1fr 1fr;
        grid-auto-rows: 200px;
    }

    .proyecto-card { grid-column: span 1; }
    .proyecto-card--featured { grid-column: span 2; grid-row: span 1; }

    /* Footer */
    .footer__top { grid-template-columns: 1fr; gap: var(--space-xl); }
    .footer__bottom { flex-direction: column; text-align: center; }
}

/* Mobile-small */
@media (max-width: 480px) {
    .hero__actions { flex-direction: column; align-items: flex-start; }

    .proyectos__grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 240px;
    }

    .proyecto-card,
    .proyecto-card--featured { grid-column: span 1; grid-row: span 1; }

    .newsletter-form__group { flex-direction: column; }
    .newsletter-form__input { border-right: 1.5px solid var(--color-border); border-bottom: none; border-radius: 2px 2px 0 0; }
    .newsletter-form__btn   { border-radius: 0 0 2px 2px; text-align: center; }
}

/* ── 11. ANIMACIONES DE ENTRADA ───────────────────────────────── */
/* Controladas por JS con IntersectionObserver */
.reveal {
    opacity:    0;
    transform:  translateY(30px);
    transition: opacity  var(--dur-slow) var(--ease-smooth),
                transform var(--dur-slow) var(--ease-smooth);
}

.reveal.is-visible {
    opacity:   1;
    transform: translateY(0);
}

/* Stagger delays */
.reveal[data-delay="1"] { transition-delay: 100ms; }
.reveal[data-delay="2"] { transition-delay: 200ms; }
.reveal[data-delay="3"] { transition-delay: 300ms; }
.reveal[data-delay="4"] { transition-delay: 400ms; }

/* ── 12. FOCUS STYLES (Accesibilidad) ─────────────────────────── */
:focus-visible {
    outline:        2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius:  2px;
}

/* ════════════════════════════════════════════════════════════════
   13. CATÁLOGO DE PRODUCTOS — catalogo.php
   ════════════════════════════════════════════════════════════════ */

/* ── 13a. HERO DEL CATÁLOGO ────────────────────────────────────── */
.cat-hero {
    position:       relative;
    padding:        calc(var(--space-3xl) + 5rem) 0 var(--space-2xl);
    background:     var(--color-bg);
    overflow:       hidden;
}

.cat-hero::before {
    content:    '';
    position:   absolute;
    top:        0;
    left:       0;
    right:      0;
    height:     1px;
    background: linear-gradient(to right, transparent, var(--color-accent), transparent);
    opacity:    0.4;
}

.cat-hero__container {
    max-width: var(--container-max);
    margin:    0 auto;
    padding:   0 var(--container-pad);
}

.cat-hero__title {
    font-family:    var(--font-display);
    font-size:      var(--fs-4xl);
    font-weight:    700;
    line-height:    0.92;
    letter-spacing: -0.04em;
    text-transform: uppercase;
    color:          var(--color-text);
    margin-bottom:  var(--space-md);
    margin-top:     var(--space-md);
}

.cat-hero__subtitle {
    font-size:      var(--fs-md);
    font-weight:    300;
    color:          var(--color-text-muted);
    max-width:      48ch;
    line-height:    1.6;
    margin-bottom:  var(--space-xl);
    letter-spacing: 0.01em;
}

/* ── 13b. FILTROS DE CATEGORÍA ─────────────────────────────────── */
.cat-filters {
    display:    flex;
    flex-wrap:  wrap;
    gap:        0.5rem;
    margin-top: var(--space-lg);
}

.cat-filter-btn {
    display:        inline-flex;
    align-items:    center;
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding:        0.5rem 1.25rem;
    border:         1.5px solid var(--color-border);
    border-radius:  2px;
    color:          var(--color-text-muted);
    background:     transparent;
    cursor:         pointer;
    transition:     all var(--dur-base) var(--ease-smooth);
}

.cat-filter-btn:hover {
    border-color: var(--color-accent);
    color:        var(--color-text);
}

.cat-filter-btn.is-active {
    background:   var(--color-accent);
    border-color: var(--color-accent);
    color:        #fff;
    box-shadow:   0 0 20px var(--color-accent-glow);
}

/* ── 13c. SECCIÓN GRILLA ───────────────────────────────────────── */
.catalogo-grid-section {
    padding:    var(--space-2xl) 0 var(--space-3xl);
    background: var(--color-bg);
}

.catalogo-grid-section__container {
    max-width: var(--container-max);
    margin:    0 auto;
    padding:   0 var(--container-pad);
}

.cat-empty {
    display:         flex;
    flex-direction:  column;
    align-items:     center;
    justify-content: center;
    gap:             var(--space-lg);
    padding:         var(--space-3xl) 0;
    text-align:      center;
}

.cat-empty__text {
    color:     var(--color-text-muted);
    font-size: var(--fs-md);
}

/* ── 13d. GRILLA DE PRODUCTOS ──────────────────────────────────── */
.cat-grid {
    display:               grid;
    grid-template-columns: repeat(4, 1fr);
    gap:                   var(--space-lg) var(--space-md);
}

/* ── 13e. TARJETA DE PRODUCTO ──────────────────────────────────── */
.producto-card-cat {
    display:        flex;
    flex-direction: column;
    background:     var(--color-surface);
    border:         1px solid var(--color-border);
    border-radius:  2px;
    overflow:       hidden;
    transition:     border-color var(--dur-base) var(--ease-smooth),
                    box-shadow   var(--dur-base) var(--ease-smooth),
                    transform    var(--dur-base) var(--ease-smooth);
}

.producto-card-cat:hover {
    border-color: rgba(217, 83, 30, 0.35);
    box-shadow:   0 8px 32px rgba(0,0,0,0.4);
    transform:    translateY(-3px);
}

.producto-card-cat__media-btn {
    position:     relative;
    width:        100%;
    aspect-ratio: 4 / 5;
    overflow:     hidden;
    background:   var(--color-bg-alt);
    cursor:       pointer;
    border:       none;
    padding:      0;
    display:      block;
}

.producto-card-cat__img {
    position:        absolute;
    inset:           0;
    width:           100%;
    height:          100%;
    object-fit:      cover;
    object-position: center top;
    transition:      opacity  var(--dur-slow) var(--ease-smooth),
                     transform var(--dur-slow) var(--ease-smooth);
}

.producto-card-cat__img--main {
    opacity:   1;
    transform: scale(1);
    z-index:   1;
}

.producto-card-cat__img--hover {
    opacity:   0;
    transform: scale(1.04);
    z-index:   2;
}

.producto-card-cat__media-btn:hover .producto-card-cat__img--main {
    opacity:   0;
    transform: scale(1.04);
}

.producto-card-cat__media-btn:hover .producto-card-cat__img--hover {
    opacity:   1;
    transform: scale(1);
}

.producto-card-cat__placeholder {
    width:           100%;
    height:          100%;
    display:         flex;
    flex-direction:  column;
    align-items:     center;
    justify-content: center;
    gap:             var(--space-sm);
    background:      var(--color-surface);
    transition:      background var(--dur-base);
}

.producto-card-cat__media-btn:hover .producto-card-cat__placeholder {
    background: #1a1a1a;
}

.producto-card-cat__placeholder-logo {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    letter-spacing: 0.12em;
    color:          var(--color-text-faint);
}

.producto-card-cat__placeholder-sku {
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    letter-spacing: 0.15em;
    color:          var(--color-text-faint);
    text-transform: uppercase;
}

.producto-card-cat__hover-overlay {
    position:        absolute;
    inset:           0;
    z-index:         3;
    display:         flex;
    align-items:     flex-end;
    justify-content: center;
    padding-bottom:  var(--space-md);
    background:      linear-gradient(to top, rgba(13,13,13,0.7) 0%, transparent 60%);
    opacity:         0;
    transition:      opacity var(--dur-base) var(--ease-smooth);
}

.producto-card-cat__media-btn:hover .producto-card-cat__hover-overlay {
    opacity: 1;
}

.producto-card-cat__quick-view-label {
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color:          #fff;
    background:     rgba(217, 83, 30, 0.9);
    padding:        0.4rem 1rem;
    border-radius:  2px;
}

/* ── 13f. BADGES DE ESTADO ─────────────────────────────────────── */
.producto-badge {
    position:       absolute;
    top:            var(--space-sm);
    left:           var(--space-sm);
    z-index:        4;
    font-family:    var(--font-display);
    font-size:      0.65rem;
    font-weight:    700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding:        0.3rem 0.75rem;
    border-radius:  2px;
}

.producto-badge--nuevo   { background: var(--color-accent); color: #fff; }
.producto-badge--agotado { background: rgba(242,241,236,0.12); color: var(--color-text-muted); border: 1px solid var(--color-border); }

/* ── 13g. INFO DE LA TARJETA ───────────────────────────────────── */
.producto-card-cat__info {
    display:         flex;
    flex-direction:  column;
    justify-content: space-between;
    flex:            1;
    padding:         var(--space-md);
    gap:             var(--space-md);
}

.producto-card-cat__sku {
    display:        block;
    font-family:    var(--font-display);
    font-size:      0.65rem;
    font-weight:    600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-text-faint);
    margin-bottom:  0.4rem;
}

.producto-card-cat__nombre {
    font-family:    var(--font-display);
    font-size:      var(--fs-md);
    font-weight:    700;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    line-height:    1.15;
    margin-bottom:  0.5rem;
}

.producto-card-cat__nombre-btn {
    background: none;
    border:     none;
    padding:    0;
    font:       inherit;
    color:      inherit;
    text-align: left;
    cursor:     pointer;
    transition: color var(--dur-fast);
}

.producto-card-cat__nombre-btn:hover { color: var(--color-accent); }

.producto-card-cat__descripcion {
    font-size:   var(--fs-sm);
    color:       var(--color-text-muted);
    font-weight: 300;
    line-height: 1.6;
}

.producto-card-cat__footer {
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    gap:             var(--space-sm);
    flex-wrap:       wrap;
    padding-top:     var(--space-sm);
    border-top:      1px solid var(--color-border);
}

.producto-card-cat__precio {
    font-family:    var(--font-display);
    font-size:      var(--fs-md);
    font-weight:    700;
    color:          var(--color-text);
    letter-spacing: -0.01em;
}

/* ── 13h. BOTÓN WHATSAPP ───────────────────────────────────────── */
.btn--whatsapp {
    background:  #25D366;
    color:       #fff;
    border:      2px solid #25D366;
    font-size:   var(--fs-xs);
    padding:     0.55rem 1rem;
}

.btn--whatsapp:hover {
    background:   #1da851;
    border-color: #1da851;
    box-shadow:   0 0 20px rgba(37, 211, 102, 0.3);
}

.btn--sm { font-size: var(--fs-xs); padding: 0.55rem 1rem; }

.btn--lg {
    font-size:       var(--fs-sm);
    padding:         1rem 2rem;
    width:           100%;
    justify-content: center;
}

/* ── 13i. MODAL DE QUICK VIEW ──────────────────────────────────── */
.qv-modal {
    position:        fixed;
    inset:           0;
    z-index:         500;
    display:         flex;
    align-items:     center;
    justify-content: center;
    padding:         var(--space-md);
}

.qv-modal[hidden] { display: none; }

.qv-modal.is-opening {
    display:   flex;
    animation: modalFadeIn var(--dur-base) var(--ease-smooth) forwards;
}

.qv-modal.is-closing {
    animation: modalFadeOut var(--dur-base) var(--ease-smooth) forwards;
}

@keyframes modalFadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalFadeOut { from { opacity: 1; } to { opacity: 0; } }

.qv-modal__backdrop {
    position:       absolute;
    inset:          0;
    background:     rgba(13, 13, 13, 0.88);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor:         pointer;
}

.qv-modal__panel {
    position:      relative;
    z-index:       1;
    background:    var(--color-surface);
    border:        1px solid var(--color-border);
    border-radius: 2px;
    max-width:     900px;
    width:         100%;
    max-height:    90vh;
    overflow-y:    auto;
    animation:     panelSlideIn var(--dur-base) var(--ease-spring) forwards;
}

@keyframes panelSlideIn {
    from { transform: translateY(24px) scale(0.98); opacity: 0; }
    to   { transform: translateY(0)    scale(1);    opacity: 1; }
}

.qv-modal__close {
    position:        absolute;
    top:             var(--space-md);
    right:           var(--space-md);
    z-index:         2;
    width:           2.5rem;
    height:          2.5rem;
    display:         flex;
    align-items:     center;
    justify-content: center;
    background:      rgba(242, 241, 236, 0.06);
    border:          1px solid var(--color-border);
    border-radius:   50%;
    color:           var(--color-text-muted);
    transition:      all var(--dur-fast);
}

.qv-modal__close svg   { width: 1.1rem; height: 1.1rem; }
.qv-modal__close:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.qv-modal__content {
    display:               grid;
    grid-template-columns: 1fr 1fr;
}

.qv-modal__media {
    position:     relative;
    aspect-ratio: 3 / 4;
    overflow:     hidden;
    background:   var(--color-bg-alt);
}

.qv-modal__img {
    width:           100%;
    height:          100%;
    object-fit:      cover;
    object-position: center top;
}

.qv-modal__placeholder {
    width:           100%;
    height:          100%;
    display:         flex;
    align-items:     center;
    justify-content: center;
    font-family:     var(--font-display);
    font-size:       var(--fs-2xl);
    font-weight:     700;
    letter-spacing:  0.12em;
    color:           var(--color-text-faint);
}

.qv-modal__details {
    padding:        var(--space-xl) var(--space-lg);
    display:        flex;
    flex-direction: column;
    gap:            var(--space-sm);
}

.qv-modal__nombre {
    font-family:    var(--font-display);
    font-size:      var(--fs-xl);
    font-weight:    700;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height:    1.1;
    color:          var(--color-text);
    margin-top:     0.25rem;
}

.qv-modal__precio {
    font-family:    var(--font-display);
    font-size:      var(--fs-lg);
    font-weight:    700;
    color:          var(--color-accent);
    letter-spacing: -0.01em;
}

.qv-modal__descripcion-larga {
    font-size:   var(--fs-sm);
    font-weight: 300;
    color:       var(--color-text-muted);
    line-height: 1.8;
}

.qv-modal__divider {
    height:     1px;
    background: var(--color-border);
    margin:     var(--space-sm) 0;
}

.qv-modal__agotado-msg {
    font-size:     var(--fs-sm);
    color:         var(--color-text-muted);
    font-weight:   300;
    line-height:   1.6;
    padding-left:  var(--space-sm);
    border-left:   2px solid var(--color-border);
    margin-bottom: var(--space-sm);
}

/* ── 13i. PAGINACIÓN ───────────────────────────────────────────── */
.cat-pagination {
    margin-top: var(--space-2xl);
    display: flex;
    justify-content: center;
}

.cat-pagination__list {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
    padding: 0;
}

.cat-pagination__item {
    margin: 0;
}

.cat-pagination__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 var(--space-sm);
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    background: transparent;
    border-radius: 2px;
    transition: all var(--dur-fast) var(--ease-smooth);
    cursor: pointer;
}

.cat-pagination__btn:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.cat-pagination__btn.is-active {
    color: var(--color-bg);
    background-color: var(--color-text);
    border-color: var(--color-text);
}

.cat-pagination__btn--prev,
.cat-pagination__btn--next {
    padding: 0 var(--space-md);
}

/* ── 13j. BANNER CTA INFERIOR ──────────────────────────────────── */
.cat-cta-banner {
    background:    var(--color-bg-alt);
    border-top:    1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding:       var(--space-2xl) 0;
}

.cat-cta-banner__container {
    max-width:       var(--container-max);
    margin:          0 auto;
    padding:         0 var(--container-pad);
    display:         flex;
    align-items:     center;
    justify-content: space-between;
    gap:             var(--space-xl);
    flex-wrap:       wrap;
}

.cat-cta-banner__title {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    line-height:    1.05;
}

.cat-cta-banner__text {
    color:       var(--color-text-muted);
    font-size:   var(--fs-sm);
    max-width:   40ch;
    margin-top:  var(--space-sm);
    font-weight: 300;
}

.cat-cta-banner__actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

/* ── 13k. BANNER CATÁLOGO EN INDEX.PHP ─────────────────────────── */
.catalogo-banner {
    padding:    var(--space-3xl) 0;
    background: var(--color-bg-alt);
    position:   relative;
    overflow:   hidden;
}

.catalogo-banner::after {
    content:    '';
    position:   absolute;
    bottom:     0;
    left:       0;
    right:      0;
    height:     1px;
    background: linear-gradient(to right, transparent, var(--color-accent), transparent);
    opacity:    0.3;
}

.catalogo-banner__container {
    max-width:       var(--container-max);
    margin:          0 auto;
    padding:         0 var(--container-pad);
    display:         grid;
    grid-template-columns: 1fr auto;
    align-items:     center;
    gap:             var(--space-xl);
}

.catalogo-banner__eyebrow {
    display:        block;
    font-family:    var(--font-display);
    font-size:      var(--fs-xs);
    font-weight:    600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color:          var(--color-accent);
    margin-bottom:  var(--space-sm);
}

.catalogo-banner__title {
    font-family:    var(--font-display);
    font-size:      var(--fs-2xl);
    font-weight:    700;
    letter-spacing: -0.03em;
    text-transform: uppercase;
    line-height:    1.05;
    margin-bottom:  var(--space-sm);
}

.catalogo-banner__text {
    color:       var(--color-text-muted);
    font-size:   var(--fs-sm);
    max-width:   55ch;
    font-weight: 300;
    line-height: 1.7;
}

/* ── 13k.1 DESTACADOS CAROUSEL EN INDEX.PHP ────────────────────── */
.destacados-section {
    padding: var(--space-3xl) 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.destacados-section__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

.destacados-section__header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: var(--space-xs);
    width: 100%;
}

.carousel-nav {
    display: flex;
    gap: var(--space-xs);
}

.carousel-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-smooth);
}

.carousel-nav-btn svg {
    width: 20px;
    height: 20px;
}

.carousel-nav-btn:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
    background-color: rgba(242, 241, 236, 0.05);
}

.carousel-container {
    margin-top: var(--space-xl);
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: none; /* Firefox */
}

.carousel-track::-webkit-scrollbar {
    display: none; /* Safari / Chrome */
}

.carousel-item {
    flex: 0 0 280px;
    scroll-snap-align: start;
}

.destacados-section__cta {
    margin-top: var(--space-xl);
    display: flex;
    justify-content: center;
}

@media (min-width: 768px) {
    .carousel-item {
        flex: 0 0 calc(33.333% - 16px);
    }
}

@media (min-width: 1024px) {
    .carousel-item {
        flex: 0 0 calc(25% - 18px);
    }
}

/* ── 13l. ESTADO ACTIVO NAVBAR LINK ────────────────────────────── */
.navbar__link.is-active       { color: var(--color-text); }
.navbar__link.is-active::after { width: 100%; }

/* ── 13m. RESPONSIVIDAD DEL CATÁLOGO ───────────────────────────── */

@media (max-width: 1024px) {
    .cat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .hero__title { font-size: clamp(2rem, 8vw, 3.5rem); }
    .cat-hero__title { font-size: var(--fs-3xl); }

    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-md) var(--space-sm); }

    .qv-modal__content        { grid-template-columns: 1fr; }
    .qv-modal__media          { aspect-ratio: 4 / 3; max-height: 320px; }
    .qv-modal__details        { padding: var(--space-md); }

    .catalogo-banner__container { grid-template-columns: 1fr; }

    .cat-cta-banner__container { flex-direction: column; text-align: center; }
    .cat-cta-banner__actions   { justify-content: center; }
}

@media (max-width: 480px) {
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }

    .producto-card-cat__footer { flex-direction: column; align-items: flex-start; }
    .btn--whatsapp             { width: 100%; justify-content: center; }

    .cat-filter-btn { font-size: 0.6rem; padding: 0.4rem 0.9rem; }
}