/* =========================================================
   IMALAH BUILD — Stylesheet (rekonstruksi versi lengkap)
   Font  : Poppins (heading) + Inter (body)
   Warna : Navy biru identitas + Amber sebagai aksen
   ========================================================= */

:root{
    /* Imalah Konstruksi (IKON) brand palette */
    --color-navy: #292D32;        /* Graphite — primary dark */
    --color-navy-dark: #17191C;   /* Deep Charcoal — darkest surfaces */
    --color-navy-light: #FBEADD;  /* light orange-tinted panel bg */
    --color-amber: #E86F19;       /* Construction Orange — primary accent */
    --color-amber-dark: #C25A12;
    --color-amber-light: #FDE8D6;
    --color-ink: #292D32;         /* Graphite text */
    --color-gray: #5B6472;
    --color-gray-light: #8993A1;
    --color-bg: #F5F3EE;          /* Warm Light — page background */
    --color-white: #FFFFFF;
    --color-border: #E6E1D6;

    --font-head: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 26px;
    --shadow-sm: 0 4px 14px rgba(14,38,73,.07);
    --shadow-md: 0 14px 32px rgba(14,38,73,.12);
    --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
    margin:0; font-family:var(--font-body); color:var(--color-ink);
    background:var(--color-white); line-height:1.65; -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{ font-family:var(--font-head); color:var(--color-navy-dark); line-height:1.25; margin:0 0 .6em; }
p{ margin:0 0 1em; color:var(--color-gray); }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; }

.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
.section{ padding:84px 0; }
.section-alt{ background:var(--color-bg); }
.section-navy{ background:var(--color-navy-dark); }
.section-navy h2,.section-navy h3{ color:var(--color-white); }
.section-navy p{ color:#B9CBE8; }
@media (max-width:768px){ .section{ padding:52px 0; } }

.skip-link{
    position:absolute; left:-999px; top:auto; background:var(--color-navy); color:#fff;
    padding:10px 18px; z-index:999; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; top:0; }

.eyebrow{
    display:inline-flex; align-items:center; gap:8px; font-family:var(--font-head); font-weight:600;
    font-size:.8rem; letter-spacing:.08em; text-transform:uppercase; color:var(--color-amber-dark);
    background:var(--color-amber-light); padding:6px 16px; border-radius:999px; margin-bottom:16px;
}
.section-head{ max-width:680px; margin:0 auto 44px; }
.section-head h2{ font-size:2rem; }
.text-center{ text-align:center; }
.mx-auto{ margin-left:auto; margin-right:auto; }

/* ===== Buttons ===== */
.btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px; font-family:var(--font-head);
    font-weight:600; font-size:.94rem; padding:13px 26px; border-radius:999px; border:2px solid transparent;
    cursor:pointer; transition:all .2s ease; white-space:nowrap;
}
.btn-primary{ background:var(--color-navy); color:#fff; }
.btn-primary:hover{ background:var(--color-navy-dark); transform:translateY(-2px); }
.btn-amber{ background:var(--color-amber); color:#fff; }
.btn-amber:hover{ background:var(--color-amber-dark); transform:translateY(-2px); }
.btn-outline{ background:transparent; border-color:var(--color-navy); color:var(--color-navy); }
.btn-outline:hover{ background:var(--color-navy); color:#fff; }
.btn-outline-light{ background:transparent; border-color:#fff; color:#fff; }
.btn-outline-light:hover{ background:#fff; color:var(--color-navy-dark); }
.btn-sm{ padding:9px 18px; font-size:.85rem; }
.btn-block{ width:100%; }
.btn:disabled{ opacity:.5; cursor:not-allowed; }

/* ===== Header ===== */
.site-header{ position:sticky; top:0; z-index:100; background:rgba(255,255,255,.96); backdrop-filter:blur(8px); border-bottom:1px solid var(--color-border); }
.header-inner{ display:flex; align-items:center; gap:26px; padding:14px 24px; }
.brand-logo{ height:50px; }
.brand-wordmark{ display:flex; flex-direction:column; line-height:1; }
.brand-wordmark-script{ font-family:'Poppins',cursive; font-style:italic; font-weight:600; font-size:1.5rem; color:var(--color-navy); letter-spacing:.01em; }
.brand-wordmark-caps{ font-family:var(--font-head); font-weight:700; font-size:.72rem; letter-spacing:.16em; color:var(--color-amber); margin-top:2px; border-top:2px solid var(--color-amber); padding-top:3px; }
.brand-wordmark-footer{ margin-bottom:14px; }
.brand-wordmark-footer .brand-wordmark-script{ color:#fff; }
.brand-wordmark-footer .brand-wordmark-caps{ color:var(--color-amber); border-top-color:var(--color-amber); }
.main-nav{ margin-left:auto; }
.main-nav ul{ display:flex; gap:26px; }
.main-nav a{ font-family:var(--font-head); font-weight:500; font-size:.94rem; color:var(--color-ink); padding:8px 0; position:relative; }
.main-nav a::after{ content:''; position:absolute; left:0; bottom:0; height:2px; width:0; background:var(--color-amber); transition:width .2s ease; }
.main-nav a:hover::after, .main-nav a.is-active::after{ width:100%; }
.main-nav a.is-active{ color:var(--color-navy); }
.header-actions{ display:flex; align-items:center; gap:10px; }
.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span{ width:22px; height:2px; background:var(--color-ink); border-radius:2px; }

@media (max-width:980px){
    .header-actions .btn{ display:none; }
    .main-nav{ position:absolute; top:100%; left:0; right:0; background:#fff; border-bottom:1px solid var(--color-border); box-shadow:var(--shadow-md); max-height:0; overflow:hidden; transition:max-height .3s ease; }
    .main-nav.open{ max-height:520px; }
    .main-nav ul{ flex-direction:column; padding:12px 24px; gap:2px; }
    .main-nav a{ display:block; padding:12px 0; }
    .nav-toggle{ display:flex; }
}

/* ===== Hero ===== */
.hero{ position:relative; overflow:hidden; background:linear-gradient(135deg,var(--color-navy-dark),var(--color-navy) 70%); padding:88px 0 0; }
.hero-inner{ display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center; padding-bottom:56px; }
.hero-eyebrow{ display:block; color:#EAD9A8; font-family:var(--font-head); font-weight:600; letter-spacing:.04em; font-size:.85rem; margin-bottom:16px; }
.hero h1{ color:#fff; font-size:2.5rem; margin-bottom:16px; }
.hero .lead{ color:#DCE7F7; font-size:1.06rem; max-width:520px; }
.hero-cta{ display:flex; gap:14px; margin-top:26px; flex-wrap:wrap; }
.hero-art{ position:relative; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-md); }
.hero-art img{ width:100%; height:360px; object-fit:cover; }
.hero-3d-wrap{ position:relative; width:100%; height:360px; background:linear-gradient(160deg,#E9EEF6,#F2E7D6); }
.hero-3d-wrap canvas{ position:relative; z-index:2; width:100% !important; height:100% !important; display:block; }
.hero-3d-fallback{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:1; }
.hero-3d-wrap.is-3d-ready .hero-3d-fallback{ display:none; }
.hero-badge{
    position:absolute; left:20px; bottom:20px; background:rgba(255,255,255,.95); border-radius:var(--radius-md);
    padding:14px 20px; display:flex; gap:10px; align-items:center; box-shadow:var(--shadow-md);
}
.hero-badge strong{ font-family:var(--font-head); font-size:1.4rem; color:var(--color-navy); display:block; }
.hero-badge span{ font-size:.78rem; color:var(--color-gray); }
@media (max-width:960px){ .hero-inner{ grid-template-columns:1fr; } .hero h1{ font-size:2rem; } }

.stats-strip{ background:var(--color-navy-dark); padding:0; }
.stats-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:rgba(255,255,255,.1); }
.stats-grid > div{ background:var(--color-navy-dark); padding:32px 16px; text-align:center; }
.stat-num{ font-family:var(--font-head); font-weight:800; font-size:2.1rem; color:#fff; }
.stat-label{ font-size:.82rem; color:#B9CBE8; margin-top:4px; }
@media (max-width:768px){ .stats-grid{ grid-template-columns:repeat(2,1fr); } }

/* ===== Split layout (about, services detail) ===== */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:52px; align-items:center; }
.split.reverse{ direction:rtl; }
.split.reverse > *{ direction:ltr; }
.split-media{ border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-sm); }
.split-media img{ width:100%; height:340px; object-fit:cover; }
@media (max-width:900px){ .split, .split.reverse{ grid-template-columns:1fr; direction:ltr; } }

/* ===== Values grid ===== */
.values-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
@media (max-width:900px){ .values-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .values-grid{ grid-template-columns:1fr; } }
.value-card{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:26px 22px; box-shadow:var(--shadow-sm); transition:transform .2s ease; }
.value-card:hover{ transform:translateY(-4px); }
.value-letter{
    width:48px; height:48px; border-radius:12px; background:var(--color-amber-light); color:var(--color-amber-dark);
    display:flex; align-items:center; justify-content:center; font-family:var(--font-head); font-weight:800; font-size:1.2rem;
    margin-bottom:14px;
}
.value-card h3{ font-size:1.08rem; margin-bottom:6px; }
.value-card p{ font-size:.92rem; margin:0; }

/* ===== Services grid ===== */
.services-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
@media (max-width:960px){ .services-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .services-grid{ grid-template-columns:1fr; } }
.service-card{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:26px 22px; box-shadow:var(--shadow-sm); }
.service-icon{ width:52px; height:52px; border-radius:14px; background:var(--color-navy-light); color:var(--color-navy); display:flex; align-items:center; justify-content:center; margin-bottom:14px; }
.service-card h3{ font-size:1.05rem; margin-bottom:6px; }
.service-card p{ font-size:.9rem; margin:0; }

.card{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:24px; box-shadow:var(--shadow-sm); }

/* ===== CTA banner ===== */
.cta-banner{
    background:linear-gradient(120deg,var(--color-amber-dark),var(--color-amber)); border-radius:var(--radius-lg);
    padding:44px; color:#fff; display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.cta-banner h2, .cta-banner h3{ color:#fff; margin-bottom:4px; }
.cta-banner p{ color:#FCEFD6; margin:0; }

/* ===== Testimonials ===== */
.testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
@media (max-width:900px){ .testi-grid{ grid-template-columns:1fr; } }
.testi-card{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:24px; box-shadow:var(--shadow-sm); }
.testi-quote{ color:var(--color-ink); font-style:italic; font-size:.94rem; }
.testi-name{ font-family:var(--font-head); font-weight:600; color:var(--color-navy-dark); font-size:.92rem; }
.testi-loc{ font-size:.8rem; color:var(--color-gray-light); }
.small-note{ font-size:.85rem; color:var(--color-gray-light); }

/* ===== Page header (sub pages) ===== */
.page-header{ background:linear-gradient(135deg,var(--color-navy-dark),var(--color-navy)); color:#fff; padding:60px 0; text-align:center; }
.page-header h1{ color:#fff; margin-bottom:8px; }
.page-header p{ color:#DCE7F7; }
.breadcrumb{ font-size:.85rem; color:#CBDBF3; margin-bottom:10px; }

/* ===== Portfolio tabs ===== */
.portfolio-tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:32px; }
.portfolio-tab{
    background:#fff; border:1.5px solid var(--color-border); border-radius:999px; padding:10px 20px;
    font-family:var(--font-head); font-weight:600; font-size:.88rem; cursor:pointer; color:var(--color-ink);
    transition:all .15s ease;
}
.portfolio-tab.is-active, .portfolio-tab:hover{ background:var(--color-navy); border-color:var(--color-navy); color:#fff; }
.portfolio-panel{ display:none; grid-template-columns:repeat(3,1fr); gap:16px; }
.portfolio-panel.is-active{ display:grid; }
@media (max-width:900px){ .portfolio-panel{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .portfolio-panel{ grid-template-columns:1fr; } }
.portfolio-item{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:18px; display:flex; gap:12px; align-items:flex-start; box-shadow:var(--shadow-sm); }
.portfolio-item .dot{ flex-shrink:0; width:10px; height:10px; border-radius:50%; background:var(--color-amber); margin-top:6px; }
.portfolio-item h4{ margin:0; font-size:.96rem; color:var(--color-ink); }

/* ===== FAQ (accordion) ===== */
.faq-list{ max-width:760px; margin:0 auto; }
.faq-item{ border-bottom:1px solid var(--color-border); }
.faq-q{
    width:100%; background:none; border:none; padding:20px 0; display:flex; justify-content:space-between;
    align-items:center; cursor:pointer; font-family:var(--font-head); font-weight:600; color:var(--color-navy-dark);
    font-size:1rem; text-align:left;
}
.faq-q .plus{ font-size:1.3rem; color:var(--color-amber); transition:transform .2s ease; }
.faq-item.is-open .plus{ transform:rotate(45deg); }
.faq-a{ display:none; padding:0 0 20px; }
.faq-item.is-open .faq-a{ display:block; }

/* ===== Forms ===== */
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-group{ margin-bottom:16px; }
.form-group.full{ grid-column:1/-1; }
.form-group label{ display:block; font-family:var(--font-head); font-weight:600; font-size:.88rem; margin-bottom:6px; }
.form-group input, .form-group select, .form-group textarea{
    width:100%; padding:12px 14px; border:1.5px solid var(--color-border); border-radius:var(--radius-sm);
    font-family:var(--font-body); font-size:.94rem; background:#fff; color:var(--color-ink); transition:border-color .2s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{ outline:none; border-color:var(--color-navy); }
.error-text{ color:#C0392B; font-size:.8rem; margin-top:4px; display:none; }
.form-group.has-error input, .form-group.has-error select{ border-color:#C0392B; }
.form-group.has-error .error-text{ display:block; }
@media (max-width:600px){ .form-grid{ grid-template-columns:1fr; } }

.note-box{ background:var(--color-amber-light); border:1px solid #EEDCB2; border-radius:var(--radius-md); padding:16px 20px; font-size:.85rem; color:#5E4A1E; }

/* ===== Assembler ===== */
.assembler-layout{ display:grid; grid-template-columns:320px 1fr; gap:28px; align-items:start; }
.assembler-panel{ background:#fff; border:1px solid var(--color-border); border-radius:var(--radius-md); padding:22px; box-shadow:var(--shadow-sm); }
.assembler-field{ margin-bottom:20px; }
.assembler-field label{ display:block; font-family:var(--font-head); font-weight:600; font-size:.86rem; margin-bottom:8px; color:var(--color-ink); }
.assembler-field select{ width:100%; padding:12px; border:1.5px solid var(--color-border); border-radius:var(--radius-sm); font-family:var(--font-body); font-size:1rem; -webkit-appearance:none; appearance:none; }
.assembler-field input[type="checkbox"]{ width:20px; height:20px; }
.assembler-field input[type="range"]{ height:28px; touch-action:pan-y; }
.swatches{ display:flex; gap:10px; flex-wrap:wrap; }
.swatch{ width:36px; height:36px; border-radius:50%; cursor:pointer; border:3px solid transparent; display:inline-block; transition:transform .15s ease; }
.swatch.is-selected{ border-color:var(--color-navy); transform:scale(1.12); }
.assembler-viewport{ position:relative; background:linear-gradient(160deg,#E9EEF6,#DCE6F2); border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-sm); height:460px; touch-action:pan-y; }
.assembler-viewport canvas{ width:100% !important; height:100% !important; display:block; cursor:grab; touch-action:none; }
.assembler-viewport canvas:active{ cursor:grabbing; }
.assembler-hint{ position:absolute; bottom:14px; left:14px; background:rgba(255,255,255,.85); padding:6px 14px; border-radius:999px; font-size:.78rem; color:var(--color-gray); }
.assembler-estimate{ background:var(--color-navy-light); border:1px solid var(--color-amber-light); border-radius:var(--radius-sm); padding:14px 16px; margin-bottom:18px; position:sticky; top:8px; z-index:3; }
.estimate-range{ font-family:var(--font-head); font-weight:700; font-size:1.15rem; color:var(--color-amber-dark); }
.assembler-viewport.is-3d-failed canvas{ display:none; }
.assembler-fallback-note{ position:absolute; inset:0; display:flex; align-items:center; justify-content:center; text-align:center; padding:28px; font-size:.85rem; color:var(--color-gray); background:linear-gradient(160deg,#E9EEF6,#F2E7D6); }
@media (max-width:960px){
    .assembler-layout{ grid-template-columns:1fr; }
    .assembler-viewport{ height:min(60vh,360px); }
}
@media (max-width:600px){
    .assembler-panel{ padding:16px; }
    .assembler-viewport{ height:min(50vh,300px); border-radius:var(--radius-md); }
    .assembler-estimate{ top:0; }
    .estimate-range{ font-size:1.02rem; }
}

/* ===== Kalkulator RAB wizard ===== */
.stepper{ display:flex; justify-content:space-between; margin-bottom:32px; flex-wrap:wrap; gap:6px; }
.step-dot{
    flex:1; min-width:80px; text-align:center; font-size:.78rem; font-family:var(--font-head); font-weight:600;
    color:var(--color-gray-light); padding-bottom:10px; border-bottom:3px solid var(--color-border); transition:all .2s ease;
}
.step-dot.is-active, .step-dot.is-done{ color:var(--color-navy); border-color:var(--color-navy); }
.step-panel{ display:none; }
.step-panel.is-active{ display:block; animation:fadeIn .3s ease; }
@keyframes fadeIn{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }

.choice-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:10px; }
@media (max-width:600px){ .choice-grid{ grid-template-columns:repeat(2,1fr); } }
.choice-chip{
    border:1.5px solid var(--color-border); border-radius:var(--radius-sm); padding:12px 10px; text-align:center;
    cursor:pointer; font-size:.87rem; font-weight:600; color:var(--color-ink); transition:all .15s ease;
}
.choice-chip:hover{ border-color:var(--color-navy); }
.choice-chip.is-selected{ background:var(--color-navy); border-color:var(--color-navy); color:#fff; }

.wizard-nav{ display:flex; justify-content:space-between; margin-top:28px; gap:12px; }

.result-box{ text-align:center; background:var(--color-navy-light); border-radius:var(--radius-md); padding:28px 20px; margin-bottom:20px; }
.result-range{ font-family:var(--font-head); font-weight:800; font-size:1.9rem; color:var(--color-navy); margin:10px 0; }

/* ===== Contact ===== */
.footer-contact li{ margin-bottom:8px; font-size:.9rem; }
.footer-contact a:hover{ color:var(--color-amber); }

/* ===== Footer ===== */
.site-footer{ background:var(--color-ink); color:#B7C0CC; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:36px; padding:60px 0 36px; }
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-logo{ height:42px; margin-bottom:14px; filter:brightness(0) invert(1); }
.footer-brand p{ color:#8D97A5; font-size:.9rem; }
.footer-legal{ font-size:.78rem; color:#6E7885; }
.footer-col h6{ color:#fff; font-size:.92rem; margin-bottom:14px; letter-spacing:.02em; }
.footer-col ul li{ margin-bottom:9px; font-size:.88rem; }
.footer-col a:hover{ color:var(--color-amber); }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.08); padding:16px 24px; font-size:.8rem; color:#6E7885; text-align:center; }

.wa-float{
    position:fixed; bottom:22px; right:22px; width:56px; height:56px; border-radius:50%; background:#25D366; color:#fff;
    display:flex; align-items:center; justify-content:center; box-shadow:0 10px 24px rgba(0,0,0,.25); z-index:200;
    transition:transform .2s ease;
}
.wa-float:hover{ transform:scale(1.08); }