:root {
    --orange: #FF8C00;
    --carbon: #0f1117;
    --carbon-surface: #1e2433;
    --carbon-border: rgba(255, 255, 255, 0.07);
    --white: #ffffff;
    --white-muted: rgba(255, 255, 255, 0.6);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: var(--carbon);
    color: var(--white);
}

.section-tag {
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-tag::before {
    content: '';
    display: block;
    width: 28px;
    height: 1px;
    background: var(--orange);
}

.section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(42px, 5.5vw, 72px);
    line-height: 1;
}

.section-title span {
    color: var(--orange);
}

.section-header {
    margin-bottom: 64px;
}

.portfolio {
    padding: 120px 5%;
    background: var(--carbon);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio-item {
    background: var(--carbon-surface);
    border: 1px solid var(--carbon-border);
    border-radius: 14px;
    overflow: hidden;
    position: relative;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.portfolio-item:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 140, 0, 0.35);
    box-shadow: 0 20px 40px -20px rgba(255, 140, 0, 0.15);
}

.portfolio-thumb {
    min-height: 280px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 26px 22px;
}

.portfolio-thumb-bg {
    position: absolute;
    inset: 0;
    transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-thumb-bg {
    transform: scale(1.05);
}

/* ── Vista previa en vivo: MacBook + iPhone con la web real dentro,
   interactiva (scroll, clics). La escala se calcula por JS porque las
   tarjetas son responsive — un valor fijo en CSS se desajustaría en
   cualquier otro ancho de pantalla. Ver pf-preview-scale.js. ── */
.pf-devices {
    position: relative; z-index: 1; width: 100%;
    display: flex; align-items: flex-end; justify-content: center;
    pointer-events: none; /* la tarjeta entera sigue siendo un enlace; se reactiva dentro de cada marco */
}
.pf-devices, .pf-devices * { pointer-events: none; }
.pf-devices iframe { pointer-events: auto; }

.pf-macbook { position: relative; width: 84%; max-width: 340px; filter: drop-shadow(0 14px 20px rgba(0,0,0,.45)); }
.pf-mb-lid {
    background: linear-gradient(165deg, #3a3d42 0%, #1c1d20 8%, #17181a 92%, #2a2c2f 100%);
    border-radius: 10px 10px 3px 3px; padding: 6px 6px 0;
    border: 1px solid rgba(255,255,255,.08); border-bottom: none;
}
.pf-mb-notch-row { display:flex; justify-content:center; padding-bottom:4px; }
.pf-mb-cam { width:3px; height:3px; border-radius:50%; background:#000; }
.pf-mb-screen {
    position: relative; aspect-ratio: 1440/900; border-radius: 2px; overflow: hidden;
    background: var(--carbon-surface);
}
.pf-mb-screen iframe { border:0; display:block; transform-origin: top left; }
.pf-mb-reflection {
    position:absolute; inset:0; pointer-events:none;
    background: linear-gradient(115deg, rgba(255,255,255,.07) 0%, rgba(255,255,255,0) 26%, rgba(255,255,255,0) 78%, rgba(255,255,255,.04) 100%);
}
.pf-mb-hinge { height: 5px; background: linear-gradient(#0d0e10, #232427); margin: 0 5px; }
.pf-mb-base {
    height: 9px; border-radius: 0 0 8px 8px; position: relative;
    background: linear-gradient(180deg, #e4e4e8 0%, #c6c6cc 45%, #aeaeb4 100%);
}
.pf-mb-base::after {
    content:''; position:absolute; left:50%; top:0; transform:translateX(-50%);
    width: 15%; height: 4px; background: #97979d; border-radius: 0 0 5px 5px;
}

.pf-iphone {
    position: absolute; right: 2%; bottom: -4px; width: 26%; min-width: 60px; max-width: 96px;
    background: linear-gradient(160deg, #4a4a4e, #1a1a1c 40%, #0c0c0d);
    border-radius: 20px; padding: 3px;
    box-shadow: 0 12px 22px rgba(0,0,0,.5), inset 0 0 0 1px rgba(255,255,255,.06);
}
.pf-ip-screen { position:relative; aspect-ratio: 390/844; border-radius: 17px; overflow:hidden; background: var(--carbon-surface); }
.pf-ip-screen iframe { border:0; display:block; transform-origin: top left; }
.pf-ip-island { position:absolute; top:6px; left:50%; transform:translateX(-50%); width: 28%; height: 9px; background:#000; border-radius: 8px; z-index:3; }
.pf-ip-reflection {
    position:absolute; inset:0; pointer-events:none; z-index:2;
    background: linear-gradient(120deg, rgba(255,255,255,.10) 0%, rgba(255,255,255,0) 22%, rgba(255,255,255,0) 80%, rgba(255,255,255,.05) 100%);
}

.portfolio-info {
    padding: 24px 28px 28px;
    border-top: 1px solid var(--carbon-border);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.portfolio-tag {
    background: rgba(255, 140, 0, 0.12);
    color: var(--orange);
    font-family: 'Space Mono', monospace;
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid rgba(255, 140, 0, 0.2);
}

.portfolio-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.portfolio-subtitle {
    font-size: 13px;
    color: var(--white-muted);
    font-weight: 300;
    line-height: 1.5;
    flex: 1;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    font-size: 12px;
    color: var(--orange);
    font-family: 'Space Mono', monospace;
    letter-spacing: 0.08em;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.3s, transform 0.3s;
}

.portfolio-item:hover .portfolio-link {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1100px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .portfolio {
        padding: 80px 5%;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-thumb {
        min-height: 300px;
    }
}