/* =========================================
   JUSTWEB OS - PORTFOLIO PAGE
   portfolio.css - portfolio.php
   ========================================= */

:root {
    --red: #D93025;
    --red-glow: rgba(217, 48, 37, 0.22);
    --blue: #1A56E8;
    --green: #00C96B;
    --green-dim: rgba(0, 201, 107, 0.55);
    --dark: #0F1117;
    --dark-2: #161B27;
    --off-white: #F7F6F2;
    --cream: #F0EDE6;
    --white: #FFFFFF;
    --ink: #0E1018;
    --ink-mid: #374151;
    --ink-soft: #6B7280;
    --ink-faint: #9CA3AF;
    --font-b: 'Plus Jakarta Sans', sans-serif;
    --font-m: 'IBM Plex Mono', monospace;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-b); overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
.mono { font-family: var(--font-m); }
.container-wide { width: 100%; max-width: 1360px; margin: 0 auto; padding: 0 44px; }

.pf-main { background: var(--off-white); color: var(--ink); }


/* Hero */
.pf-hero {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: flex-end;
    background: var(--dark);
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pf-hero__photo { position: absolute; inset: 0; z-index: 0; }
.pf-hero__photo img { width: 100%; height: 100%; object-fit: cover; opacity: 0.34; }
.pf-hero__photo-scrim {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(15, 17, 23, 0.5) 0%, rgba(15, 17, 23, 0.2) 42%, rgba(15, 17, 23, 0.94) 92%),
        linear-gradient(90deg, rgba(15, 17, 23, 0.8) 0%, transparent 60%);
}

.pf-hero__grain {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0.035;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 180px;
}

.pf-hero__inner {
    position: relative;
    z-index: 4;
    width: 100%;
    padding-top: 200px;
    padding-bottom: 94px;
}

.pf-hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    font-size: 10px;
    letter-spacing: 0.18em;
    color: rgba(255, 255, 255, 0.4);
}

.pf-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 var(--green-dim);
    animation: pulseDot 2.4s ease infinite;
}

@keyframes pulseDot {
    0% { box-shadow: 0 0 0 0 var(--green-dim); }
    60% { box-shadow: 0 0 0 7px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
}

.pf-hero__title {
    font-size: clamp(52px, 8vw, 110px);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 0.95;
    color: #fff;
    margin-bottom: 24px;
}

.pf-hero__title em {
    display: block;
    font-style: normal;
    color: var(--red);
}

.pf-hero__sub {
    max-width: 640px;
    font-size: 17px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 36px;
}

.pf-categories {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.pf-category {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.13);
    color: rgba(255, 255, 255, 0.75);
    border-radius: 999px;
    font-size: 10px;
    letter-spacing: 0.16em;
    padding: 11px 18px;
    cursor: pointer;
    transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.2s;
}

.pf-category:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.pf-category.is-active {
    background: var(--red);
    border-color: var(--red);
    color: #fff;
    box-shadow: 0 12px 26px var(--red-glow);
}


/* Work grid */
.pf-work {
    background: var(--off-white);
    padding: 98px 0 116px;
}

.pf-work__head {
    margin-bottom: 44px;
    display: grid;
    gap: 14px;
}

.pf-work__title {
    font-size: clamp(34px, 4vw, 56px);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.08;
    color: var(--ink);
}

.pf-work__sub {
    max-width: 760px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--ink-soft);
}

.pf-work__count {
    font-size: 10px;
    letter-spacing: 0.16em;
    color: var(--ink-faint);
}

.pf-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    transition: opacity 0.28s ease, transform 0.34s var(--ease);
}

.pf-grid.is-filtering {
    opacity: 0.58;
    transform: translateY(6px);
}

.pf-card {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.35s var(--ease), box-shadow 0.35s ease, border-color 0.25s;
}

.pf-card:hover {
    transform: translateY(-7px);
    border-color: rgba(0, 0, 0, 0.16);
    box-shadow: 0 24px 52px rgba(0, 0, 0, 0.1);
}

.pf-card.is-hidden { display: none; }

.pf-card.is-entering {
    animation: pfCardEnter 0.52s var(--ease) both;
    animation-delay: var(--enter-delay, 0ms);
}

@keyframes pfCardEnter {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.pf-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #0d1118;
}

.pf-card__media img,
.pf-card__media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

.pf-card__preview {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 1;
    pointer-events: none;
    transition: transform 0.5s var(--ease), opacity 0.35s var(--ease);
}

.pf-card__media.is-video-ready .pf-card__preview {
    opacity: 0;
}

.pf-card:hover .pf-card__media img,
.pf-card:hover .pf-card__media video { transform: scale(1.04); }

.pf-card__media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.08) 20%, rgba(0, 0, 0, 0.58) 100%);
}

.pf-card__tag {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    font-size: 9px;
    letter-spacing: 0.17em;
    color: rgba(255, 255, 255, 0.92);
    background: rgba(15, 17, 23, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    padding: 7px 10px;
}

.pf-card__body {
    padding: 24px 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.pf-card__title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--ink);
    line-height: 1.15;
}

.pf-card__text {
    font-size: 14px;
    line-height: 1.75;
    color: var(--ink-soft);
    min-height: 74px;
}

.pf-card__foot {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding-top: 10px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.pf-card__foot > span {
    font-size: 9px;
    letter-spacing: 0.12em;
    color: var(--ink-faint);
}

.pf-card__link {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--blue);
    white-space: nowrap;
    border-bottom: 1px solid rgba(26, 86, 232, 0.3);
    padding-bottom: 1px;
    transition: color 0.2s, border-color 0.2s;
}

.pf-card__link:hover {
    color: var(--ink);
    border-color: var(--ink);
}


/* CTA */
.pf-cta {
    position: relative;
    overflow: hidden;
    background: var(--dark);
    padding: 110px 0;
}

.pf-cta__photo { position: absolute; inset: 0; z-index: 0; }
.pf-cta__photo img { width: 100%; height: 100%; object-fit: cover; opacity: 0.2; }
.pf-cta__photo-scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 17, 23, 0.93) 0%, rgba(22, 27, 39, 0.82) 100%);
}

.pf-cta__inner {
    position: relative;
    z-index: 4;
    text-align: center;
    max-width: 760px;
}

.pf-cta__eyebrow {
    display: inline-block;
    font-size: 9px;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.38);
    margin-bottom: 22px;
}

.pf-cta__title {
    font-size: clamp(40px, 6vw, 84px);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 0.98;
    color: #fff;
    margin-bottom: 22px;
}

.pf-cta__title em { font-style: normal; color: var(--red); }

.pf-cta__body {
    color: rgba(255, 255, 255, 0.56);
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 38px;
}

.pf-cta__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 26px;
    flex-wrap: wrap;
}

.pf-btn-red {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--red);
    color: #fff;
    border-radius: 6px;
    padding: 15px 28px;
    font-size: 14px;
    font-weight: 700;
    transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
}

.pf-btn-red:hover {
    background: #b82920;
    transform: translateY(-2px);
    box-shadow: 0 14px 36px var(--red-glow);
}

.pf-btn-red .arr { font-size: 17px; transition: transform 0.3s var(--ease); }
.pf-btn-red:hover .arr { transform: translate(2px, -2px); }

.pf-btn-ghost {
    display: inline-flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.76);
    border-bottom: 1.5px solid rgba(255, 255, 255, 0.24);
    padding: 12px 0;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.25s, border-color 0.25s;
}

.pf-btn-ghost:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.62);
}


/* Reveal */
.reveal {
    opacity: 0;
    transform: translateY(26px) scale(0.99);
    filter: blur(1px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease), filter 0.8s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
}

.reveal.in {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}


/* Responsive */
@media (max-width: 1100px) {
    .container-wide { padding: 0 28px; }
    .pf-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .container-wide { padding: 0 20px; }
    .pf-hero { min-height: 76vh; }
    .pf-hero__inner { padding-top: 170px; padding-bottom: 74px; }
    .pf-hero__title { font-size: clamp(44px, 12vw, 62px); }
    .pf-hero__sub { font-size: 15px; }
    .pf-grid { grid-template-columns: 1fr; }
    .pf-card__text { min-height: 0; }
    .pf-card__foot { flex-direction: column; align-items: flex-start; }
    .pf-cta__actions { flex-direction: column; gap: 14px; }
}

@media (max-width: 480px) {
    .pf-categories { gap: 9px; }
    .pf-category { width: 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
    .pf-grid,
    .pf-card,
    .pf-card__media img,
    .pf-card__media video,
    .pf-category,
    .pf-btn-red,
    .pf-btn-red .arr,
    .reveal {
        animation: none !important;
        transition: none !important;
    }
}