/* ==========================================================================
   DESAIN TOKEN — Tema "Industrial Nameplate"
   Terinspirasi pelat nama (nameplate) mesin baja: kokoh, presisi, berani.
   ========================================================================== */
:root {
    /* Warna */
    --graphite-950: #15171a;
    --graphite-900: #1b1e22;
    --graphite-800: #23262b;
    --graphite-700: #2f333a;
    --steel-500: #6b7280;
    --steel-300: #a8adb6;
    --signal-orange: #e8551a;
    --signal-orange-dark: #c4430f;
    --hazard-yellow: #f2a900;
    --plate-paper: #f1efe7;
    --plate-paper-dim: #e7e3d6;
    --ink-900: #1b1d21;
    --ink-600: #4a4d54;
    --white: #ffffff;

    /* Tipografi */
    --font-display: "Oswald", "Arial Narrow", sans-serif;
    --font-body: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;
    --font-mono: "IBM Plex Mono", "Courier New", monospace;

    /* Layout */
    --lebar-maks: 1180px;
    --radius-plat: 4px;
    --bayangan-plat: 0 2px 0 rgba(0,0,0,0.35), 0 14px 30px -12px rgba(0,0,0,0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--plate-paper);
    color: var(--ink-900);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.wadah {
    width: 100%;
    max-width: var(--lebar-maks);
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin: 0;
    line-height: 1.1;
}

.mono { font-family: var(--font-mono); }

/* Fokus keyboard tetap terlihat (aksesibilitas) */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--signal-orange);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ==========================================================================
   TOMBOL & LABEL
   ========================================================================== */
.tombol {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 15px;
    padding: 13px 24px;
    border-radius: var(--radius-plat);
    border: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    white-space: nowrap;
}
.tombol:hover { transform: translateY(-2px); }

.tombol-utama {
    background: var(--signal-orange);
    color: var(--white);
    box-shadow: 0 4px 0 var(--signal-orange-dark);
}
.tombol-utama:hover { box-shadow: 0 6px 0 var(--signal-orange-dark); }
.tombol-utama:active { transform: translateY(1px); box-shadow: 0 2px 0 var(--signal-orange-dark); }

.tombol-garis {
    background: transparent;
    color: var(--plate-paper);
    border: 2px solid var(--steel-500);
}
.tombol-garis:hover { border-color: var(--plate-paper); }

.tombol-kecil { padding: 9px 16px; font-size: 13px; }
.tombol-lebar { width: 100%; justify-content: center; }

.label-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--signal-orange);
    font-weight: 600;
}
.label-eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--signal-orange);
}

/* ==========================================================================
   GARIS HAZARD — elemen tanda tangan, dipakai TERBATAS sebagai pembatas seksi
   ========================================================================== */
.garis-hazard {
    height: 10px;
    background: repeating-linear-gradient(
        135deg,
        var(--hazard-yellow) 0 18px,
        var(--graphite-950) 18px 36px
    );
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--graphite-950);
    border-bottom: 1px solid var(--graphite-700);
}
.header .wadah {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 78px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
}
.logo-mark {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
}
.logo-teks {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 0.03em;
    line-height: 1.1;
}
.logo-teks span {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    color: var(--steel-300);
    text-transform: uppercase;
    margin-top: 2px;
}

.nav-utama {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-utama a {
    font-size: 14px;
    font-weight: 600;
    color: var(--steel-300);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}
.nav-utama a:hover,
.nav-utama a.aktif {
    color: var(--white);
    border-bottom-color: var(--signal-orange);
}

.tombol-menu-mobile {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 26px;
    cursor: pointer;
}

@media (max-width: 880px) {
    .nav-utama {
        position: fixed;
        top: 78px;
        left: 0;
        right: 0;
        background: var(--graphite-950);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 8px 24px 20px;
        border-bottom: 1px solid var(--graphite-700);
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.18s ease, transform 0.18s ease;
    }
    .nav-utama.terbuka {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }
    .nav-utama a { width: 100%; padding: 13px 0; border-bottom: 1px solid var(--graphite-700); }
    .nav-utama .tombol { margin-top: 12px; }
    .tombol-menu-mobile { display: block; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
    position: relative;
    background: var(--graphite-950);
    color: var(--white);
    overflow: hidden;
    padding: 88px 0 76px;
    background-image:
        linear-gradient(var(--graphite-950), var(--graphite-950)),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.045) 0 1px, transparent 1px 64px),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.045) 0 1px, transparent 1px 64px);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: clamp(36px, 5vw, 58px);
    color: var(--white);
    margin: 18px 0 20px;
}
.hero h1 em {
    font-style: normal;
    color: var(--signal-orange);
}
.hero p.hero-sub {
    font-size: 17px;
    color: var(--steel-300);
    max-width: 52ch;
    margin-bottom: 32px;
}
.hero-aksi { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; }

@media (max-width: 880px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; max-width: 320px; margin: 0 auto; }
}

/* ==========================================================================
   BILAH STATISTIK
   ========================================================================== */
.bilah-statistik {
    background: var(--plate-paper);
    border-bottom: 1px solid var(--plate-paper-dim);
}
.statistik-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    padding: 30px 0;
}
.statistik-item {
    text-align: center;
    padding: 0 12px;
    border-right: 1px solid var(--plate-paper-dim);
}
.statistik-item:last-child { border-right: none; }
.statistik-angka {
    font-family: var(--font-mono);
    font-size: clamp(24px, 3.4vw, 34px);
    font-weight: 600;
    color: var(--signal-orange-dark);
}
.statistik-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-600);
    margin-top: 4px;
}
@media (max-width: 700px) {
    .statistik-grid { grid-template-columns: repeat(2, 1fr); row-gap: 22px; }
    .statistik-item:nth-child(2) { border-right: none; }
}

/* ==========================================================================
   SEKSI UMUM
   ========================================================================== */
.seksi { padding: 76px 0; }
.seksi-paper { background: var(--plate-paper); }
.seksi-gelap { background: var(--graphite-950); color: var(--white); }
.seksi-header { max-width: 640px; margin-bottom: 44px; }
.seksi-header h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 14px 0 12px; }
.seksi-gelap .seksi-header h2 { color: var(--white); }
.seksi-header p { color: var(--ink-600); font-size: 16px; }
.seksi-gelap .seksi-header p { color: var(--steel-300); }

/* ==========================================================================
   PELAT NAMA (NAMEPLATE) — elemen tanda tangan utama, dipakai untuk produk,
   alasan memilih kami, dan blok kontak. Meniru pelat identitas mesin baja:
   bingkai tebal + baut di tiap sudut + data teknis bergaya cetak digital.
   ========================================================================== */
.pelat {
    position: relative;
    background: var(--white);
    border: 2px solid var(--graphite-900);
    border-radius: var(--radius-plat);
    box-shadow: var(--bayangan-plat);
    padding: 22px;
}
.pelat::before, .pelat::after,
.pelat .baut-kanan-atas, .pelat .baut-kanan-bawah {
    content: "";
    position: absolute;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #d8dade, #8b8f96 60%, #55585e 100%);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.35);
}
.pelat::before { top: 10px; left: 10px; }
.pelat::after { bottom: 10px; left: 10px; }
.pelat .baut-kanan-atas { top: 10px; right: 10px; }
.pelat .baut-kanan-bawah { bottom: 10px; right: 10px; }

/* ==========================================================================
   GRID PRODUK & KARTU PRODUK
   ========================================================================== */
.grid-produk {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
@media (max-width: 980px) { .grid-produk { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-produk { grid-template-columns: 1fr; } }

.kartu-produk { display: flex; flex-direction: column; }
.kartu-produk-kategori {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--signal-orange-dark);
    font-weight: 600;
    margin-bottom: 6px;
}
.kartu-produk-foto {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: var(--plate-paper);
    border: 1px solid var(--plate-paper-dim);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
    margin-bottom: 16px;
}
.kartu-produk-foto img, .kartu-produk-foto svg { width: 100%; height: 100%; object-fit: contain; }

.kartu-produk h3 {
    font-size: 19px;
    margin-bottom: 4px;
    text-transform: none;
    letter-spacing: 0;
}
.kartu-produk-model {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-600);
    margin-bottom: 14px;
}

.tabel-spek {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12.5px;
    margin-bottom: 16px;
}
.tabel-spek tr { border-top: 1px dashed var(--plate-paper-dim); }
.tabel-spek tr:first-child { border-top: none; }
.tabel-spek td { padding: 6px 0; vertical-align: top; }
.tabel-spek td:first-child { color: var(--ink-600); width: 44%; }
.tabel-spek td:last-child { font-weight: 600; text-align: right; }

.kartu-produk-harga {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: 14px;
}
.kartu-produk-harga small {
    display: block;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 11px;
    color: var(--ink-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.kartu-produk-aksi { margin-top: auto; }

/* ==========================================================================
   FILTER KATEGORI (halaman produk)
   ========================================================================== */
.filter-kategori {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}
.chip-filter {
    font-family: var(--font-mono);
    font-size: 12.5px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 18px;
    border: 2px solid var(--graphite-900);
    border-radius: 999px;
    background: transparent;
    color: var(--graphite-900);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}
.chip-filter:hover { background: var(--plate-paper-dim); }
.chip-filter.aktif { background: var(--graphite-900); color: var(--white); }

/* ==========================================================================
   ALASAN MEMILIH KAMI
   ========================================================================== */
.grid-alasan {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
@media (max-width: 980px) { .grid-alasan { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-alasan { grid-template-columns: 1fr; } }

.kartu-alasan {
    background: var(--graphite-800);
    border: 1px solid var(--graphite-700);
    border-radius: var(--radius-plat);
    padding: 24px 20px;
}
.kartu-alasan svg { width: 34px; height: 34px; color: var(--signal-orange); margin-bottom: 16px; }
.kartu-alasan h3 { font-size: 16px; color: var(--white); margin-bottom: 8px; text-transform: none; letter-spacing: 0; }
.kartu-alasan p { font-size: 14px; color: var(--steel-300); margin: 0; }

/* ==========================================================================
   TENTANG KAMI
   ========================================================================== */
.grid-tentang {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
@media (max-width: 880px) { .grid-tentang { grid-template-columns: 1fr; } }
.tentang-teks p { color: var(--ink-600); margin: 0 0 16px; }
.tentang-teks p:last-child { margin-bottom: 0; }
.tentang-visual svg { width: 100%; }

.daftar-cek { margin-top: 20px; }
.daftar-cek li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 14.5px;
    border-top: 1px dashed var(--plate-paper-dim);
}
.daftar-cek li:first-child { border-top: none; }
.daftar-cek svg { flex-shrink: 0; width: 18px; height: 18px; color: var(--signal-orange-dark); margin-top: 2px; }

/* ==========================================================================
   TIMELINE / SEJARAH
   ========================================================================== */
.timeline { margin-top: 8px; }
.timeline-item {
    display: grid;
    grid-template-columns: 90px 1fr;
    gap: 20px;
    padding: 20px 0;
    border-top: 1px dashed var(--graphite-700);
}
.timeline-item:first-child { border-top: none; }
.timeline-tahun { font-family: var(--font-mono); font-size: 20px; font-weight: 600; color: var(--signal-orange); }
.timeline-item h4 { text-transform: none; letter-spacing: 0; font-size: 16px; color: var(--white); margin-bottom: 4px; }
.timeline-item p { color: var(--steel-300); font-size: 14px; margin: 0; }

/* ==========================================================================
   CTA PITA (band ajakan hubungi)
   ========================================================================== */
.pita-cta {
    background: var(--signal-orange);
    color: var(--white);
    padding: 56px 0;
}
.pita-cta-isi {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.pita-cta h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 6px; color: var(--white); }
.pita-cta p { margin: 0; color: rgba(255,255,255,0.9); }
.pita-cta .tombol-utama { background: var(--graphite-950); box-shadow: 0 4px 0 #000; }
.pita-cta .tombol-utama:hover { box-shadow: 0 6px 0 #000; }

/* ==========================================================================
   KONTAK
   ========================================================================== */
.grid-kontak {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
}
@media (max-width: 880px) { .grid-kontak { grid-template-columns: 1fr; } }

.daftar-kontak li {
    display: flex;
    gap: 14px;
    padding: 16px 0;
    border-top: 1px dashed var(--plate-paper-dim);
}
.daftar-kontak li:first-child { border-top: none; }
.daftar-kontak svg { width: 22px; height: 22px; color: var(--signal-orange-dark); flex-shrink: 0; }
.daftar-kontak strong { display: block; font-size: 14px; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 3px; }
.daftar-kontak span, .daftar-kontak a { color: var(--ink-600); font-size: 14.5px; }

.peta-bingkai {
    width: 100%;
    aspect-ratio: 4 / 3;
    border: 2px solid var(--graphite-900);
    border-radius: var(--radius-plat);
    overflow: hidden;
}
.peta-bingkai iframe { width: 100%; height: 100%; border: 0; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background: var(--graphite-950);
    color: var(--steel-300);
    padding: 52px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid var(--graphite-700);
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 30px; } }
.footer-brand p { font-size: 14px; max-width: 34ch; margin-top: 14px; }
.footer h4 {
    font-size: 12px;
    letter-spacing: 0.1em;
    color: var(--white);
    margin-bottom: 16px;
}
.footer ul li { margin-bottom: 10px; font-size: 14px; }
.footer a:hover { color: var(--signal-orange); }
.footer-bawah {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 22px;
    font-size: 12.5px;
    color: var(--steel-500);
}

/* ==========================================================================
   TOMBOL WHATSAPP MENGAMBANG
   ========================================================================== */
.wa-mengambang {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 10px;
    background: #25d366;
    color: var(--white);
    padding: 14px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    transition: transform 0.15s ease;
}
.wa-mengambang:hover { transform: translateY(-3px); }
.wa-mengambang svg { width: 22px; height: 22px; }
@media (max-width: 560px) {
    .wa-mengambang span { display: none; }
    .wa-mengambang { padding: 14px; }
}

/* ==========================================================================
   HALAMAN DALAM (header ringkas untuk halaman non-beranda)
   ========================================================================== */
.header-halaman {
    background: var(--graphite-950);
    color: var(--white);
    padding: 52px 0 40px;
    background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 64px);
}
.header-halaman h1 { font-size: clamp(28px, 4vw, 42px); color: var(--white); margin: 12px 0 10px; }
.remah-roti { font-family: var(--font-mono); font-size: 12.5px; color: var(--steel-300); }
.remah-roti a:hover { color: var(--signal-orange); }