/* PLN Indonesia Power theme — gradasi dari logo PLN IP (biru navy → teal → hijau) */
:root {
  --ink: #0e2233;
  --muted: #6b7d8b;
  --line: #dbe4ec;
  --paper: #f2f6fa;
  --dark: #0b2540;

  /* PLN IP brand palette */
  --pln-navy: #0b3d91;
  --pln-blue: #1266d6;
  --pln-teal: #0aa9b2;
  --pln-green: #22c55e;
  --pln-yellow: #f5c518;

  --primary: var(--pln-navy);
  --accent: var(--pln-teal);
  --accent-soft: #e5f4f6;

  --brand-gradient: linear-gradient(135deg, #0b3d91 0%, #0aa9b2 55%, #22c55e 100%);
  --brand-gradient-soft: linear-gradient(135deg, rgba(11,61,145,.08) 0%, rgba(10,169,178,.08) 55%, rgba(34,197,94,.08) 100%);
}
* { box-sizing: border-box; }
.app-shell { min-height: 100vh; overflow: hidden; background: var(--paper); }

/* HEADER */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1240px; margin: auto; height: 82px; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; color: var(--ink); background: none; border: 0; padding: 0; text-align: left; min-width: 0; flex-shrink: 1; }
.brand-logo { height: 46px; width: auto; object-fit: contain; display: block; flex-shrink: 0; }
.brand-text { min-width: 0; }
.brand-text strong { display: block; font-family: 'Space Grotesk', sans-serif; letter-spacing: .04em; font-size: 14px; color: var(--pln-navy); font-weight: 800; white-space: nowrap; }
.brand-text small { display: block; color: var(--muted); font: 11px 'DM Mono', monospace; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.main-nav { display: flex; gap: 6px; }
.main-nav button, .login-link { padding: 10px 16px; border: 0; background: transparent; color: var(--muted); font-size: 13px; transition: color .2s, background .2s; border-radius: 4px; }
.main-nav button:hover, .main-nav button.active { color: var(--pln-navy); background: var(--accent-soft); font-weight: 700; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.login-link { display: flex; align-items: center; gap: 7px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); }
.login-link:hover { border-color: var(--pln-teal); color: var(--pln-navy); background: var(--accent-soft); }
.admin-chip { display: flex; gap: 8px; align-items: center; border: 1px solid #a8dee0; border-radius: 6px; background: var(--accent-soft); color: var(--pln-navy); padding: 9px 11px; font-size: 12px; }
.menu-button { display: none; border: 0; background: none; color: var(--ink); }
.mobile-nav { display: none; }

/* HERO */
.hero { position: relative; min-height: 620px; max-width: 1440px; margin: auto; overflow: hidden; background: var(--dark); color: #fff; display: flex; align-items: center; }
.hero-image { position: absolute; inset: 0;
  background:
    linear-gradient(120deg, rgba(11,61,145,.92) 0%, rgba(10,169,178,.72) 45%, rgba(34,197,94,.35) 85%),
    url('https://images.unsplash.com/photo-1578776349090-de61da00ff1a?auto=format&fit=crop&w=1800&q=85') center/cover;
}
.hero-content { position: relative; z-index: 1; width: min(700px, 62%); padding: 96px max(28px, calc((100vw - 1240px)/2)); padding-right: 0; }
.eyebrow, .section-kicker { display: flex; gap: 8px; align-items: center; color: var(--pln-yellow); font: 11px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .09em; }
.hero h1 { font: 700 clamp(52px, 7vw, 96px)/.96 'Space Grotesk', sans-serif; letter-spacing: -.06em; margin: 22px 0 25px; }
.hero h1 em, .intro h2 em, .engine-copy h2 em { font-style: normal; color: var(--pln-yellow); }
.hero p { font-size: 16px; line-height: 1.8; color: #eaf3f9; max-width: 580px; }
.hero p strong { color: #fff; font-weight: 700; }
.hero-buttons { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.primary-button, .ghost-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 14px 20px; border: 0; border-radius: 6px; background: var(--brand-gradient); color: #fff; font-weight: 700; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; transition: transform .2s, box-shadow .2s, filter .2s; }
.primary-button:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(11,61,145,.28); filter: brightness(1.05); }
.primary-button.green { background: linear-gradient(135deg, #0aa9b2 0%, #22c55e 100%); }
.ghost-button { background: transparent; border: 1px solid rgba(255,255,255,.5); color: #fff; }
.ghost-button:hover { background: rgba(255,255,255,.1); }

.hero-stat { position: absolute; z-index: 1; bottom: 42px; right: max(28px, calc((100vw - 1240px)/2)); display: flex; flex-direction: column; gap: 5px; border-left: 2px solid var(--pln-yellow); padding-left: 20px; }
.hero-stat span, .hero-stat i { font: 10px 'DM Mono', monospace; color: #d5e5f0; font-style: normal; letter-spacing: .08em; }
.hero-stat strong { font: 700 52px 'Space Grotesk', sans-serif; }
.hero-stat small { font-size: 16px; color: var(--pln-yellow); }

/* HOME SECTIONS */
.home-section { max-width: 1240px; margin: auto; padding: 120px 28px; display: grid; grid-template-columns: 1fr 2fr; gap: 80px; }
.intro h2, .engine-copy h2 { font: 700 clamp(38px, 5vw, 64px)/.98 'Space Grotesk', sans-serif; margin: 0 0 25px; letter-spacing: -.05em; color: var(--ink); }
.intro p, .engine-copy p { max-width: 650px; color: var(--muted); line-height: 1.9; font-size: 15px; }
.intro p strong { color: var(--pln-navy); }
.intro .section-kicker { color: var(--pln-teal); }

.engine-band { background: var(--dark); color: #fff; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding: 110px max(28px, calc((100vw - 1240px)/2)); position: relative; overflow: hidden; }
.engine-band::before { content: ""; position: absolute; inset: 0; background: var(--brand-gradient); opacity: .18; pointer-events: none; }
.engine-copy { position: relative; z-index: 1; }
.engine-copy p { color: #d5e5f0; }
.engine-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; gap: 18px; }
.engine-point { border-left: 2px solid var(--pln-yellow); padding: 14px 0 14px 20px; display: flex; flex-direction: column; gap: 12px; }
.engine-point svg { color: var(--pln-yellow); }
.engine-point strong { font: 600 32px 'Space Grotesk', sans-serif; color: #fff; }
.engine-point span { color: #b9cfdf; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }

/* PAGE SECTIONS */
.page-section { max-width: 1240px; margin: auto; padding: 88px 28px 130px; }
.page-intro { display: flex; align-items: end; justify-content: space-between; gap: 24px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.page-intro h1 { font: 700 64px 'Space Grotesk', sans-serif; letter-spacing: -.06em; margin: 15px 0 10px; color: var(--ink); }
.page-intro p { max-width: 540px; margin: 0; color: var(--muted); line-height: 1.7; }
.page-intro .section-kicker { color: var(--pln-teal); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; padding: 28px 0; }
.filter-row button { border: 1px solid var(--line); background: #fff; color: var(--muted); border-radius: 6px; padding: 9px 14px; font-size: 12px; transition: all .2s; }
.filter-row button:hover { border-color: var(--pln-teal); color: var(--pln-navy); }
.filter-row button.selected { background: var(--brand-gradient); color: #fff; border-color: transparent; font-weight: 600; }

/* GALLERY */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-card { background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: transform .25s, box-shadow .25s; }
.gallery-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(11,61,145,.14); }
.gallery-image { height: 220px; position: relative; overflow: hidden; background: #dfe7e1; }
.gallery-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.gallery-card:hover img { transform: scale(1.04); }
.gallery-image span { position: absolute; top: 12px; left: 12px; background: var(--pln-yellow); color: var(--ink); padding: 5px 10px; font: 10px 'DM Mono', monospace; border-radius: 4px; font-weight: 600; }
.gallery-copy { padding: 20px; }
.gallery-copy h3 { font: 700 20px 'Space Grotesk', sans-serif; margin: 0 0 10px; color: var(--ink); }
.gallery-copy p { color: var(--muted); font-size: 13px; line-height: 1.65; min-height: 43px; margin: 0 0 16px; }
.gallery-copy small { color: #91a09a; font: 10px 'DM Mono', monospace; }
.card-actions { display: flex; gap: 6px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.card-actions button { display: flex; align-items: center; gap: 5px; border: 0; background: var(--accent-soft); color: var(--pln-navy); padding: 8px 11px; border-radius: 4px; font-size: 11px; font-weight: 600; transition: filter .2s; }
.card-actions button:hover { filter: brightness(.95); }
.card-actions button.danger { color: #b54a4a; background: #fff1ef; }

/* METRICS + DASHBOARD */
.metric-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; padding: 34px 0 18px; }
.metric { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 20px; display: grid; grid-template-columns: 1fr auto; gap: 10px; position: relative; overflow: hidden; }
.metric::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--brand-gradient); }
.metric span, .metric small { color: var(--muted); font: 10px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .06em; }
.metric strong { grid-column: 1/-1; font: 700 30px 'Space Grotesk', sans-serif; color: var(--ink); }
.metric small { grid-column: 2; grid-row: 2; text-transform: none; align-self: end; color: var(--pln-teal); font-weight: 600; }

.running-panel { background: var(--dark); color: #fff; padding: 38px; border-radius: 10px; display: grid; grid-template-columns: 1fr 2fr; gap: 40px; margin: 12px 0 32px; position: relative; overflow: hidden; }
.running-panel::before { content: ""; position: absolute; inset: 0; background: var(--brand-gradient); opacity: .12; pointer-events: none; }
.running-panel > * { position: relative; z-index: 1; }
.running-panel h2 { font: 600 30px 'Space Grotesk', sans-serif; margin: 13px 0 10px; }
.running-panel p { color: #cfe0ec; font-size: 13px; line-height: 1.7; }
.running-panel .section-kicker { color: var(--pln-yellow); }
.engine-hours { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.engine-hours > div { border: 1px solid rgba(255,255,255,.2); border-radius: 8px; padding: 18px; background: rgba(255,255,255,.04); }
.engine-hours span, .engine-hours small { display: block; color: #cfe0ec; font: 10px 'DM Mono', monospace; letter-spacing: .05em; }
.engine-hours strong { display: block; font: 600 28px 'Space Grotesk', sans-serif; margin: 17px 0 3px; }
.engine-hours div div { height: 3px; margin-top: 18px; background: rgba(255,255,255,.15); border-radius: 3px; overflow: hidden; }
.engine-hours i { display: block; width: 70%; height: 100%; background: linear-gradient(90deg, var(--pln-teal), var(--pln-green)); }

.table-wrap { background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: auto; }
.table-heading { display: flex; justify-content: space-between; align-items: center; padding: 22px; border-bottom: 1px solid var(--line); }
.table-heading h2 { font: 600 20px 'Space Grotesk', sans-serif; margin: 0; color: var(--ink); }
.table-heading span { color: var(--muted); font: 11px 'DM Mono', monospace; }
table { width: 100%; border-collapse: collapse; min-width: 900px; font-size: 12px; }
th { text-align: left; color: var(--muted); font: 10px 'DM Mono', monospace; text-transform: uppercase; padding: 14px 17px; background: #f5f9fc; letter-spacing: .05em; }
td { padding: 15px 17px; border-top: 1px solid #edf1f5; color: var(--ink); }
td button { background: none; border: 0; color: var(--pln-navy); padding: 4px; }
td button:last-child { color: #b54a4a; }

/* FOOTER */
footer { display: flex; justify-content: space-between; gap: 20px; padding: 40px max(28px, calc((100vw - 1240px)/2)); background: var(--dark); color: #fff; font-size: 12px; position: relative; overflow: hidden; }
footer::before { content: ""; position: absolute; inset: 0; background: var(--brand-gradient); opacity: .15; pointer-events: none; }
footer > * { position: relative; z-index: 1; }
footer div { display: flex; flex-direction: column; gap: 7px; }
footer strong { color: #fff; font-family: 'Space Grotesk', sans-serif; letter-spacing: .04em; }
footer span { color: #cfe0ec; font-size: 11px; }

/* MODAL */
.modal-backdrop { position: fixed; inset: 0; z-index: 50; background: rgba(11,37,64,.7); backdrop-filter: blur(4px); display: grid; place-items: center; padding: 20px; }
.modal { background: #fff; width: min(500px, 100%); max-height: 90vh; overflow: auto; padding: 30px; border-radius: 12px; box-shadow: 0 25px 80px rgba(0,0,0,.3); }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.modal-head h2 { font: 700 26px 'Space Grotesk', sans-serif; margin: 0; color: var(--ink); }
.modal-head button { border: 0; background: none; color: var(--muted); }
.form-stack { display: flex; flex-direction: column; gap: 14px; }
.modal-note { color: var(--muted); font-size: 13px; margin: 0 0 3px; }
.form-stack label { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font: 11px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .04em; }
.form-stack input, .form-stack textarea, .form-stack select { width: 100%; padding: 12px 14px; border: 1px solid var(--line); background: #fff; color: var(--ink); outline: none; font: 13px 'Manrope', sans-serif; text-transform: none; border-radius: 6px; transition: border-color .2s, box-shadow .2s; }
.form-stack textarea { min-height: 90px; resize: vertical; }
.form-stack input:focus, .form-stack textarea:focus, .form-stack select:focus { border-color: var(--pln-teal); box-shadow: 0 0 0 3px rgba(10,169,178,.15); }
.performance-form { display: grid; grid-template-columns: 1fr 1fr; }
.performance-form .primary-button, .performance-form .auto-calc { grid-column: 1/-1; }
.auto-calc { padding: 14px 16px; border-radius: 8px; background: var(--brand-gradient-soft); border: 1px dashed var(--pln-teal); display: flex; justify-content: space-between; align-items: center; }
.auto-calc span { color: var(--pln-navy); font: 10px 'DM Mono', monospace; text-transform: uppercase; letter-spacing: .05em; }
.auto-calc strong { font: 700 22px 'Space Grotesk', sans-serif; color: var(--pln-navy); }
.auto-calc em { font-style: normal; color: var(--pln-teal); font-size: 12px; margin-left: 4px; font-weight: 600; }
.error-box { background: #fff0ee; border: 1px solid #f0c6be; padding: 10px; color: #a33d32; font-size: 12px; border-radius: 6px; }

/* MOBILE */
@media (max-width: 900px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 800px) {
  .main-nav, .login-link { display: none; }
  .menu-button { display: block; }
  .mobile-nav { display: flex; flex-direction: column; padding: 8px 28px 18px; gap: 5px; }
  .mobile-nav button { text-align: left; padding: 11px; border: 0; background: transparent; color: var(--muted); border-radius: 4px; }
  .hero { min-height: 670px; align-items: flex-end; }
  .hero-content { width: 100%; padding: 100px 28px 120px; }
  .hero-stat { left: 28px; right: auto; bottom: 32px; }
  .home-section, .engine-band { grid-template-columns: 1fr; gap: 35px; padding: 80px 28px; }
  .engine-grid { gap: 9px; }
  .engine-point { padding-left: 12px; }
  .engine-point strong { font-size: 24px; }
  .page-section { padding: 65px 20px 90px; }
  .page-intro { align-items: flex-start; flex-direction: column; }
  .page-intro h1 { font-size: 48px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .running-panel { grid-template-columns: 1fr; padding: 25px; }
  .engine-hours { grid-template-columns: 1fr; }
  .hero h1 { font-size: 58px; }
  footer { flex-direction: column; padding: 30px 28px; }
  .performance-form { grid-template-columns: 1fr; }
  .performance-form .primary-button { grid-column: auto; }
  .brand-logo { height: 36px; }
  .brand-text strong { font-size: 11px; letter-spacing: .02em; }
  .brand-text small { font-size: 9px; }
  .header-inner { gap: 10px; padding: 0 16px; height: 74px; }
}