/*
Theme Name: Tsukuru Portfolio
Theme URI: https://tsukuru.my.id
Author: Tsukuru
Description: Clean, modern one-page developer portfolio theme. Home/About/Portfolio/Service/Contact live as sections on the front page; Blog is a separate page.
Version: 1.0
Requires PHP: 7.4
Text Domain: tsukuru
*/

:root {
    --ink: #111318;
    --ink-soft: #4b5162;
    --paper: #ffffff;
    --paper-soft: #f5f6f8;
    --line: #e7e8ec;
    --accent: #2563eb;
    --accent-ink: #ffffff;
    --radius: 14px;
    --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.85);
    backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--line);
}

.site-header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.brand span { color: var(--accent); }

.brand-logo { display: flex; align-items: center; }
.brand-logo .custom-logo-link { display: block; }
.brand-logo img.custom-logo { height: 36px; width: auto; display: block; }

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.main-nav a {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.94rem;
    font-weight: 500;
    color: var(--ink-soft);
    transition: background .15s ease, color .15s ease;
}

.main-nav a:hover,
.main-nav a.is-active {
    background: var(--paper-soft);
    color: var(--ink);
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    cursor: pointer;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 3px;
    margin-left: 12px;
    flex-shrink: 0;
}
.lang-switch a {
    padding: 5px 12px;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 700;
    color: var(--ink-soft);
}
.lang-switch a.is-active {
    background: var(--ink);
    color: #fff;
}

/* ---------- Sections (shared) ---------- */
section { padding: 96px 0; }
section.alt { background: var(--paper-soft); }

.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--accent);
    margin-bottom: 14px;
}

h1, h2, h3 { letter-spacing: -0.02em; margin: 0 0 16px; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head p { color: var(--ink-soft); font-size: 1.05rem; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 140px 0 120px;
    text-align: center;
    color: #fff;
    background: var(--ink);
    overflow: hidden;
    isolation: isolate;
}
.hero-slides {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.6s ease;
}
.hero-slide.is-active { opacity: 1; }
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(160deg, rgba(13,15,20,.92), rgba(37,99,235,.5));
}
.hero > .wrap { position: relative; z-index: 2; }
.hero .eyebrow { color: var(--accent-soft, #60a5fa); }
.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    max-width: 780px;
    margin: 0 auto 20px;
    color: #fff;
}
.hero .lede {
    max-width: 620px;
    margin: 0 auto 36px;
    color: rgba(255,255,255,.78);
    font-size: 1.15rem;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .btn-outline { border-color: rgba(255,255,255,.35); color: #fff; background: transparent; }
.hero .btn-outline:hover { border-color: #fff; }
.hero .btn-primary { background: #fff; color: var(--ink); }
.hero .btn-primary:hover { background: var(--accent); color: #fff; }
.hero .tag {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.22);
    color: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.96rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent); }
.btn-outline { border-color: var(--line); color: var(--ink); background: var(--paper); }
.btn-outline:hover { border-color: var(--ink); }

.hero-tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 40px;
}
.tag {
    font-size: .82rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--paper-soft);
    border: 1px solid var(--line);
    color: var(--ink-soft);
}

/* ---------- About ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 56px;
    align-items: start;
}
.about-photo {
    width: 220px;
    height: 220px;
    border-radius: var(--radius);
    background: linear-gradient(160deg, var(--ink), var(--accent));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 3rem; font-weight: 700;
    overflow: hidden;
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-copy p { color: var(--ink-soft); margin: 0 0 16px; }
.stat-row { display: flex; gap: 40px; margin-top: 28px; flex-wrap: wrap; }
.stat b { display: block; font-size: 1.9rem; color: var(--ink); }
.stat span { color: var(--ink-soft); font-size: .88rem; }

/* ---------- Portfolio ---------- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(17,19,24,.08);
    border-color: transparent;
}
.card-media {
    height: 168px;
    background: linear-gradient(135deg, var(--paper-soft), var(--line));
    display: flex; align-items: center; justify-content: center;
    color: var(--ink-soft); font-size: 2rem;
}
.card-body { padding: 22px; }
.card-body h3 { font-size: 1.05rem; margin-bottom: 6px; }
.card-body p { color: var(--ink-soft); font-size: .92rem; margin: 0 0 14px; }
.card-link { font-size: .86rem; font-weight: 700; color: var(--accent); }

/* ---------- Services ---------- */
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.service-card {
    padding: 28px 22px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--paper);
}
.service-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: var(--ink);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    margin-bottom: 18px;
}
.service-card h3 { font-size: 1.02rem; }
.service-card p { color: var(--ink-soft); font-size: .9rem; margin: 0; }

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li {
    display: flex; align-items: center; gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}
.contact-list .ico {
    width: 38px; height: 38px; border-radius: 10px;
    background: var(--paper-soft);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contact-list a:hover { color: var(--accent); }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; }
.form-row input, .form-row textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--line);
    font: inherit;
    background: var(--paper-soft);
}
.form-row textarea { min-height: 120px; resize: vertical; }

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--line);
    padding: 36px 0;
}
.site-footer .wrap {
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.site-footer p { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.footer-social { display: flex; gap: 14px; }
.footer-social a { color: var(--ink-soft); font-weight: 600; font-size: .88rem; }
.footer-social a:hover { color: var(--accent); }

/* ---------- Blog ---------- */
.blog-hero { padding: 72px 0 40px; text-align: center; }
.blog-hero h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.post-list { display: grid; gap: 24px; padding-bottom: 80px; }
.post-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
}
.post-card .post-thumb {
    height: 130px; border-radius: 10px;
    background: linear-gradient(135deg, var(--paper-soft), var(--line));
}
.post-card .post-thumb img { width: 100%; height: 100%; object-fit: cover; border-radius: 10px; }
.post-meta { font-size: .8rem; color: var(--ink-soft); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .06em; }
.post-card h2 { font-size: 1.2rem; margin-bottom: 8px; }
.post-card .excerpt { color: var(--ink-soft); font-size: .95rem; }
.single-post { padding: 72px 0 96px; max-width: 720px; margin: 0 auto; }
.single-post h1 { font-size: clamp(1.8rem,4vw,2.4rem); }
.single-post .post-meta { margin-bottom: 28px; }
.single-post .entry-content p { margin: 0 0 20px; color: var(--ink-soft); }
.back-link { display: inline-block; margin-bottom: 28px; font-weight: 600; color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .about-photo { width: 140px; height: 140px; }
    .post-card { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .main-nav { position: fixed; inset: 72px 16px auto 16px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px; box-shadow: 0 20px 40px rgba(0,0,0,.12); display: none; }
    .main-nav.is-open { display: block; }
    .main-nav ul { flex-direction: column; }
    .nav-toggle { display: block; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    section { padding: 64px 0; }
}