/* =========================================================
   GoSa Green Energy — Dark Premium Industrial
   Brand palette from logo sheet: #0A2F4A #0D4A63 #107066 #1F9460 #62B14F
   ========================================================= */
:root {
  --bg: #04121d;
  --bg-2: #061a29;
  --bg-3: #08233a;
  --navy: #0a2f4a;
  --petrol: #0d4a63;
  --teal: #107066;
  --emerald: #1f9460;
  --green: #62b14f;
  --green-soft: #8fd17c;
  --text: #e9f2f5;
  --muted: #9fb6c2;
  --faint: #6c8796;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --card: rgba(10, 47, 74, 0.35);
  --card-hover: rgba(13, 74, 99, 0.45);
  --grad: linear-gradient(120deg, #62b14f 0%, #1f9460 45%, #107066 100%);
  --grad-text: linear-gradient(100deg, #8fd17c 0%, #62b14f 40%, #2fb39a 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.6);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --font-display: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --header-h: 76px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 0.5em; letter-spacing: -0.02em; font-weight: 600; text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }
::selection { background: var(--green); color: var(--bg); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--green); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 600; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Ambient background ---------- */
.ambient { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.ambient::before, .ambient::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.35;
  will-change: transform;
}
.ambient::before { width: 60vmax; height: 60vmax; left: -20vmax; top: -25vmax; background: radial-gradient(circle, #0d4a63 0%, transparent 70%); animation: drift 26s var(--ease-in-out) infinite alternate; }
.ambient::after { width: 50vmax; height: 50vmax; right: -20vmax; bottom: -25vmax; background: radial-gradient(circle, #1f9460 0%, transparent 70%); opacity: 0.18; animation: drift 32s var(--ease-in-out) infinite alternate-reverse; }
@keyframes drift { to { transform: translate3d(8vmax, 6vmax, 0) scale(1.08); } }
.grid-bg {
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
}

/* ---------- Scroll progress ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120; background: var(--grad); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.45s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled { background: rgba(4, 18, 29, 0.78); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border-color: var(--line); }
.site-header.is-hidden { transform: translateY(-100%); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-disc { width: 44px; height: 44px; border-radius: 50%; background: #fff; display: grid; place-items: center; padding: 4px; box-shadow: 0 0 0 4px rgba(98, 177, 79, 0.08); transition: transform 0.6s var(--ease); }
.brand:hover .brand-disc { transform: rotate(-60deg); }
.brand-disc img { width: 100%; height: 100%; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong { font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; letter-spacing: 0.04em; }
.brand-text span { font-family: var(--font-display); font-size: 0.56rem; letter-spacing: 0.32em; color: var(--muted); margin-top: 5px; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a { white-space: nowrap; position: relative; display: block; padding: 10px 14px; font-size: 0.93rem; color: var(--muted); border-radius: 10px; transition: color 0.25s var(--ease); }
.nav-links a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 5px; height: 2px; border-radius: 2px; background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform 0.35s var(--ease); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

.menu-btn { display: none; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--line-2); background: rgba(255,255,255,0.03); position: relative; }
.menu-btn span { position: absolute; left: 13px; right: 13px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.4s var(--ease), opacity 0.3s; }
.menu-btn span:nth-child(1) { top: 16px; } .menu-btn span:nth-child(2) { top: 22px; } .menu-btn span:nth-child(3) { top: 28px; }
.menu-open .menu-btn span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-btn span:nth-child(2) { opacity: 0; }
.menu-open .menu-btn span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 90; background: rgba(4, 18, 29, 0.97);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  padding: calc(var(--header-h) + 24px) var(--gutter) 32px;
  display: flex; flex-direction: column; gap: 4px;
  clip-path: circle(0% at calc(100% - 40px) 38px);
  transition: clip-path 0.6s var(--ease-in-out); visibility: hidden;
  overflow-y: auto;
}
.menu-open .mobile-nav { clip-path: circle(150% at calc(100% - 40px) 38px); visibility: visible; }
.mobile-nav a.m-link { font-family: var(--font-display); font-size: 1.7rem; font-weight: 500; padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; opacity: 0; transform: translateY(16px); transition: opacity 0.4s, transform 0.5s var(--ease); }
.mobile-nav a.m-link[aria-current="page"] { color: var(--green); }
.menu-open .mobile-nav a.m-link { opacity: 1; transform: none; }
.menu-open .mobile-nav a.m-link:nth-child(2) { transition-delay: 0.05s; } .menu-open .mobile-nav a.m-link:nth-child(3) { transition-delay: 0.1s; }
.menu-open .mobile-nav a.m-link:nth-child(4) { transition-delay: 0.15s; } .menu-open .mobile-nav a.m-link:nth-child(5) { transition-delay: 0.2s; }
.menu-open .mobile-nav a.m-link:nth-child(6) { transition-delay: 0.25s; } .menu-open .mobile-nav a.m-link:nth-child(7) { transition-delay: 0.3s; }
.mobile-nav .m-contact { margin-top: auto; padding-top: 28px; color: var(--muted); font-size: 0.95rem; display: grid; gap: 6px; }
.menu-open { overflow: hidden; }

/* ---------- Buttons ---------- */
.btn {
  --bh: 50px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: var(--bh); padding: 0 24px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 500; font-size: 0.95rem; letter-spacing: 0.01em;
  border: 1px solid transparent; position: relative; overflow: hidden; isolation: isolate;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.3s, background 0.3s, color 0.3s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform 0.35s var(--ease); flex-shrink: 0; }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: var(--green); color: #04121d; box-shadow: 0 10px 30px -10px rgba(98, 177, 79, 0.6); }
.btn-primary::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.45) 50%, transparent 70%); transform: translateX(-120%); transition: transform 0.8s var(--ease); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(98, 177, 79, 0.75); }
.btn-primary:hover::before { transform: translateX(120%); }
.btn-ghost { border-color: var(--line-2); background: rgba(255,255,255,0.03); color: var(--text); }
.btn-ghost:hover { border-color: var(--green); background: rgba(98,177,79,0.08); transform: translateY(-2px); }
.btn-sm { --bh: 42px; padding: 0 18px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ---------- Typography helpers ---------- */
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 0.78rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--green); margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.gradient-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.2rem); color: var(--muted); max-width: 62ch; }
.section { padding: clamp(80px, 11vw, 140px) 0; position: relative; }
.section-tight { padding: clamp(56px, 8vw, 96px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 64px); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }
.h-xl { font-size: clamp(2.4rem, 5.2vw, 4.5rem); font-weight: 600; letter-spacing: -0.035em; }
.h-lg { font-size: clamp(2rem, 4.2vw, 3.25rem); }
.h-md { font-size: clamp(1.4rem, 2.2vw, 1.75rem); }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); border: 0; margin: 0; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--header-h) + 40px) 0 80px; overflow: hidden; }
.hero .grid-bg { position: absolute; inset: 0; z-index: -1; }
.hero-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.hero h1 { margin-bottom: 24px; }
.hero h1 .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero h1 .line > span { display: inline-block; }
.hero .lead { margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 44px; color: var(--muted); font-size: 0.88rem; }
.hero-badges span { display: inline-flex; align-items: center; gap: 8px; }
.hero-badges svg { width: 18px; height: 18px; color: var(--green); }
.hero-visual { position: relative; aspect-ratio: 1 / 0.92; }
.hero-visual svg { width: 100%; height: 100%; overflow: visible; }
.scroll-cue { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--faint); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; }
.scroll-cue i { width: 1px; height: 42px; background: linear-gradient(var(--green), transparent); animation: cue 2.2s var(--ease-in-out) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* Hero plant illustration animations */
.flow { stroke-dasharray: 6 10; animation: flow 1.6s linear infinite; }
.flow-slow { animation-duration: 2.8s; }
@keyframes flow { to { stroke-dashoffset: -32; } }
.bubble { animation: bubble 3.2s ease-in infinite; opacity: 0; }
@keyframes bubble { 0% { transform: translateY(0); opacity: 0; } 15% { opacity: 0.9; } 100% { transform: translateY(-46px); opacity: 0; } }
.dome-breathe { transform-box: fill-box; transform-origin: 50% 100%; animation: breathe 5s var(--ease-in-out) infinite; }
@keyframes breathe { 50% { transform: scaleY(1.035); } }
.spin-slow { transform-box: fill-box; transform-origin: center; animation: spin 18s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pulse-dot { transform-box: fill-box; transform-origin: center; animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0% { transform: scale(0.6); opacity: 0.9; } 100% { transform: scale(2.6); opacity: 0; } }
.float-card { animation: floaty 6s var(--ease-in-out) infinite; }
.float-card.b { animation-delay: -3s; }
@keyframes floaty { 50% { transform: translateY(-10px); } }
.gauge-needle { transform-box: fill-box; transform-origin: 50% 100%; animation: needle 4s var(--ease-in-out) infinite alternate; }
@keyframes needle { from { transform: rotate(-50deg); } to { transform: rotate(40deg); } }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 22px 0; background: rgba(6, 26, 41, 0.6); mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item { display: inline-flex; align-items: center; gap: 14px; font-family: var(--font-display); font-size: 1.05rem; color: var(--muted); white-space: nowrap; }
.marquee-item::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; }
.stat { padding: clamp(24px, 3.5vw, 40px); border-right: 1px solid var(--line); position: relative; }
.stat:last-child { border-right: 0; }
.stat-num { font-family: var(--font-display); font-size: clamp(2.2rem, 4.2vw, 3.4rem); font-weight: 600; line-height: 1; letter-spacing: -0.03em; display: flex; align-items: baseline; gap: 2px; font-variant-numeric: tabular-nums; }
.stat-num small { font-size: 0.5em; color: var(--green); font-weight: 500; }
.stat-label { color: var(--muted); font-size: 0.92rem; margin-top: 10px; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative; padding: clamp(24px, 2.6vw, 34px); border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--line);
  transition: transform 0.5s var(--ease), border-color 0.4s, background 0.4s;
  overflow: hidden; isolation: isolate;
}
.card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.4s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(98, 177, 79, 0.14), transparent 60%);
}
.card:hover { transform: translateY(-4px); border-color: rgba(98, 177, 79, 0.35); background: var(--card-hover); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.96rem; margin: 0; }
.icon-box { width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 22px; background: linear-gradient(140deg, rgba(98,177,79,0.18), rgba(16,112,102,0.12)); border: 1px solid rgba(98, 177, 79, 0.25); color: var(--green-soft); transition: transform 0.5s var(--ease); }
.card:hover .icon-box { transform: rotate(-6deg) scale(1.06); }
.icon-box svg { width: 26px; height: 26px; }
.card-num { position: absolute; top: 24px; right: 26px; font-family: var(--font-display); font-size: 0.85rem; color: var(--faint); letter-spacing: 0.1em; }
.card-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; font-family: var(--font-display); font-size: 0.9rem; color: var(--green); font-weight: 500; }
.card-link svg { width: 16px; height: 16px; transition: transform 0.35s var(--ease); }
.card:hover .card-link svg { transform: translateX(4px); }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.check-list li { position: relative; padding-left: 26px; color: var(--muted); font-size: 0.93rem; }
.check-list li::before { content: ""; position: absolute; left: 0; top: 0.45em; width: 14px; height: 14px; border-radius: 50%; background: rgba(98,177,79,0.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2362b14f' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 9px no-repeat; }

/* ---------- Split layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 88px); align-items: center; }
.split.wide-left { grid-template-columns: 1.15fr 1fr; }
.panel { border-radius: calc(var(--radius) + 6px); border: 1px solid var(--line); background: linear-gradient(160deg, rgba(13,74,99,0.45), rgba(6,26,41,0.6)); padding: clamp(24px, 3vw, 40px); position: relative; overflow: hidden; }

/* ---------- Process (storytelling) ---------- */
.process { position: relative; display: grid; gap: 0; }
.process-line { position: absolute; left: 27px; top: 10px; bottom: 10px; width: 2px; background: var(--line); border-radius: 2px; }
.process-line i { position: absolute; inset: 0; background: var(--grad); transform-origin: top; transform: scaleY(0); border-radius: 2px; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 24px; padding: 18px 0 34px; position: relative; }
.step-dot { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 1px solid var(--line-2); font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; color: var(--muted); position: relative; z-index: 1; transition: background 0.5s, color 0.5s, border-color 0.5s, box-shadow 0.5s; }
.step.is-active .step-dot { background: var(--green); color: var(--bg); border-color: var(--green); box-shadow: 0 0 0 8px rgba(98,177,79,0.12); }
.step h3 { font-size: 1.25rem; margin: 12px 0 8px; }
.step p { color: var(--muted); margin: 0; max-width: 60ch; }
.step .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { display: inline-flex; align-items: center; padding: 5px 12px; border-radius: 999px; font-size: 0.78rem; border: 1px solid var(--line-2); color: var(--muted); background: rgba(255,255,255,0.02); }
.tag.green { color: var(--green-soft); border-color: rgba(98,177,79,0.35); background: rgba(98,177,79,0.08); }

/* Horizontal value chain (home) */
.chain { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; position: relative; }
.chain::before { content: ""; position: absolute; top: 34px; left: 8%; right: 8%; height: 2px; background: repeating-linear-gradient(90deg, var(--green) 0 8px, transparent 8px 18px); opacity: 0.5; animation: chainflow 1.2s linear infinite; background-size: 18px 2px; }
@keyframes chainflow { to { background-position: 18px 0; } }
.chain-item { text-align: center; position: relative; }
.chain-icon { width: 68px; height: 68px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center; background: var(--bg-2); border: 1px solid rgba(98,177,79,0.35); color: var(--green-soft); position: relative; z-index: 1; transition: transform 0.5s var(--ease), background 0.4s; }
.chain-item:hover .chain-icon { transform: translateY(-6px); background: var(--petrol); }
.chain-icon svg { width: 28px; height: 28px; }
.chain-item h4 { font-size: 1rem; margin-bottom: 6px; }
.chain-item p { font-size: 0.85rem; color: var(--muted); margin: 0; }

/* ---------- Presence (PAN India) ---------- */
.regions { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.region { padding: 24px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); transition: border-color 0.4s, transform 0.5s var(--ease); }
.region:hover { border-color: rgba(98,177,79,0.4); transform: translateY(-4px); }
.region-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.region-head h3 { font-size: 1.05rem; margin: 0; }
.region-head strong { font-family: var(--font-display); color: var(--green); font-size: 1.4rem; }
.region ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.region li { font-size: 0.78rem; padding: 4px 10px; border-radius: 999px; background: rgba(255,255,255,0.04); color: var(--muted); }
.network { position: relative; border-radius: calc(var(--radius) + 6px); overflow: hidden; border: 1px solid var(--line); background: radial-gradient(ellipse at 50% 40%, rgba(13,74,99,0.55), rgba(4,18,29,0.9) 70%); }
.network svg { width: 100%; height: auto; }
.network-legend { position: absolute; left: 20px; bottom: 18px; display: flex; flex-wrap: wrap; gap: 16px; font-size: 0.8rem; color: var(--muted); }
.network-legend span { display: inline-flex; align-items: center; gap: 8px; }
.network-legend i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }

/* ---------- Projects ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.filter-btn { min-height: 44px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line-2); background: transparent; color: var(--muted); font-size: 0.9rem; transition: all 0.3s var(--ease); }
.filter-btn:hover { color: var(--text); border-color: var(--green); }
.filter-btn.is-active { background: var(--green); color: var(--bg); border-color: var(--green); font-weight: 500; }
.project { padding: 0; display: flex; flex-direction: column; }
.project.is-hidden { display: none; }
.project-art { aspect-ratio: 16 / 9; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: linear-gradient(150deg, var(--petrol), var(--bg-2)); }
.project-art svg { position: absolute; inset: 0; width: 100%; height: 100%; transition: transform 1.2s var(--ease); }
.project:hover .project-art svg { transform: scale(1.06); }
.project-status { position: absolute; top: 16px; left: 16px; z-index: 1; font-size: 0.75rem; padding: 5px 12px; border-radius: 999px; background: rgba(4,18,29,0.75); backdrop-filter: blur(6px); border: 1px solid var(--line-2); display: inline-flex; align-items: center; gap: 7px; }
.project-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.project-status.ongoing i { background: #f2c14e; }
.project-body { padding: 24px 26px 28px; }
.project-body h3 { font-size: 1.15rem; margin-bottom: 4px; }
.project-loc { color: var(--muted); font-size: 0.88rem; display: flex; align-items: center; gap: 6px; margin-bottom: 18px; }
.project-loc svg { width: 15px; height: 15px; color: var(--green); }
.specs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; border-top: 1px solid var(--line); padding-top: 16px; }
.specs div { font-size: 0.75rem; color: var(--faint); text-transform: uppercase; letter-spacing: 0.06em; }
.specs strong { display: block; font-family: var(--font-display); color: var(--text); font-size: 1rem; letter-spacing: 0; text-transform: none; margin-top: 2px; font-weight: 500; }

/* ---------- Testimonial / quote ---------- */
.quote { font-family: var(--font-display); font-size: clamp(1.3rem, 2.4vw, 1.9rem); line-height: 1.4; font-weight: 400; letter-spacing: -0.01em; margin: 0 0 28px; }
.quote-by { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: 0.92rem; }
.avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; font-family: var(--font-display); font-weight: 600; color: var(--bg); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; border-radius: calc(var(--radius) + 10px); padding: clamp(40px, 6vw, 80px); overflow: hidden; background: linear-gradient(130deg, #0d4a63 0%, #107066 55%, #1f9460 100%); isolation: isolate; }
.cta-band::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(circle at 85% 20%, rgba(143,209,124,0.45), transparent 45%), radial-gradient(circle at 10% 110%, rgba(4,18,29,0.6), transparent 50%); }
.cta-band .mark-bg { position: absolute; right: -80px; bottom: -80px; width: 340px; height: 340px; opacity: 0.12; z-index: -1; border-radius: 50%; background: #fff url("../img/gosa-mark.png") center / 86% no-repeat; filter: grayscale(1); animation: spin 60s linear infinite; }
.cta-band h2 { max-width: 18ch; }
.cta-band p { color: rgba(233,242,245,0.85); max-width: 52ch; }
.cta-band .btn-primary { background: #fff; color: var(--bg); box-shadow: 0 14px 40px -14px rgba(0,0,0,0.5); }
.cta-band .btn-ghost { border-color: rgba(255,255,255,0.4); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { position: relative; padding: calc(var(--header-h) + clamp(64px, 10vw, 120px)) 0 clamp(56px, 8vw, 96px); overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero .grid-bg { position: absolute; inset: 0; z-index: -1; }
.page-hero h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); max-width: 18ch; letter-spacing: -0.03em; }
.breadcrumb { display: flex; gap: 10px; align-items: center; font-size: 0.85rem; color: var(--faint); margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--green); }
.page-hero .hero-mark { position: absolute; right: -6vw; top: 50%; width: min(42vw, 520px); aspect-ratio: 1; transform: translateY(-50%); opacity: 0.07; border-radius: 50%; background: #fff url("../img/gosa-mark.png") center / 88% no-repeat; animation: spin 80s linear infinite; z-index: -1; }

/* ---------- Timeline (about) ---------- */
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--line-2); }
.tl-item { padding: 28px 22px 0 0; position: relative; }
.tl-item::before { content: ""; position: absolute; top: -6px; left: 0; width: 11px; height: 11px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(98,177,79,0.15); }
.tl-year { font-family: var(--font-display); font-size: 1.6rem; font-weight: 600; color: var(--green); }
.tl-item h4 { font-size: 1rem; margin: 6px 0; }
.tl-item p { font-size: 0.88rem; color: var(--muted); }

/* ---------- Accordion ---------- */
.accordion { display: grid; gap: 12px; }
.acc-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); overflow: hidden; transition: border-color 0.3s; }
.acc-item.is-open { border-color: rgba(98,177,79,0.35); }
.acc-btn { width: 100%; min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; background: none; border: 0; text-align: left; font-family: var(--font-display); font-size: 1.02rem; font-weight: 500; }
.acc-btn .plus { width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; border: 1px solid var(--line-2); position: relative; transition: transform 0.4s var(--ease), background 0.3s; }
.acc-btn .plus::before, .acc-btn .plus::after { content: ""; position: absolute; left: 50%; top: 50%; width: 11px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); }
.acc-btn .plus::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform 0.4s var(--ease); }
.acc-item.is-open .plus { background: var(--green); color: var(--bg); border-color: var(--green); }
.acc-item.is-open .plus::after { transform: translate(-50%, -50%) rotate(0deg); }
.acc-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.45s var(--ease); }
.acc-item.is-open .acc-panel { grid-template-rows: 1fr; }
.acc-panel > div { overflow: hidden; }
.acc-panel p { padding: 0 22px 22px; margin: 0; color: var(--muted); }

/* ---------- Forms ---------- */
.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 0.86rem; color: var(--muted); font-weight: 500; }
.field label .req { color: var(--green); }
.input, .select, .textarea {
  width: 100%; min-height: 52px; padding: 14px 16px; border-radius: 12px;
  background: rgba(4,18,29,0.6); border: 1px solid var(--line-2); color: var(--text);
  font: inherit; font-size: 16px; transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.textarea { min-height: 130px; resize: vertical; }
.select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239fb6c2' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 18px; padding-right: 44px; }
.select option { background: var(--bg-2); }
.input:hover, .select:hover, .textarea:hover { border-color: rgba(255,255,255,0.24); }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 4px rgba(98,177,79,0.15); background: rgba(4,18,29,0.85); }
.field.has-error .input, .field.has-error .select, .field.has-error .textarea { border-color: #ef6b6b; }
.field-error { font-size: 0.8rem; color: #ff8e8e; min-height: 0; display: none; }
.field.has-error .field-error { display: block; }
.helper { font-size: 0.8rem; color: var(--faint); }
.form-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 6px; }
.form-status { font-size: 0.92rem; padding: 14px 16px; border-radius: 12px; display: none; }
.form-status.ok { display: block; background: rgba(98,177,79,0.12); border: 1px solid rgba(98,177,79,0.35); color: var(--green-soft); }
.btn-wa { background: #25d366; color: #04121d; }
.btn-wa:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -12px rgba(37,211,102,0.6); }

.contact-cards { display: grid; gap: 14px; }
.contact-card { display: flex; gap: 18px; align-items: flex-start; padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); transition: border-color 0.3s, transform 0.4s var(--ease); }
.contact-card:hover { border-color: rgba(98,177,79,0.35); transform: translateX(4px); }
.contact-card .icon-box { margin: 0; flex-shrink: 0; width: 48px; height: 48px; }
.contact-card h3 { font-size: 1rem; margin: 2px 0 4px; }
.contact-card p, .contact-card a { color: var(--muted); font-size: 0.95rem; margin: 0; }
.contact-card a:hover { color: var(--green); }
.map-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16 / 7; background: var(--bg-2); }
.map-wrap iframe { width: 100%; height: 100%; border: 0; filter: invert(0.9) hue-rotate(170deg) saturate(0.6) brightness(0.95); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: clamp(56px, 8vw, 88px) 0 28px; background: linear-gradient(180deg, transparent, rgba(6,26,41,0.8)); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-grid h4 { font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faint); margin-bottom: 18px; font-weight: 500; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.footer-grid ul a { color: var(--muted); font-size: 0.94rem; display: inline-block; padding: 5px 0; transition: color 0.25s, transform 0.3s var(--ease); }
.footer-grid ul a:hover { color: var(--green); transform: translateX(4px); }
.footer-about p { color: var(--muted); font-size: 0.94rem; max-width: 36ch; margin-top: 20px; }
.footer-contact li { color: var(--muted); font-size: 0.94rem; display: flex; gap: 10px; padding: 5px 0; }
.footer-contact svg { width: 18px; height: 18px; color: var(--green); flex-shrink: 0; margin-top: 3px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--faint); font-size: 0.85rem; }
.socials { display: flex; gap: 10px; margin-top: 22px; }
.socials a { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-2); color: var(--muted); transition: all 0.3s var(--ease); }
.socials a:hover { color: var(--bg); background: var(--green); border-color: var(--green); transform: translateY(-3px); }
.socials svg { width: 18px; height: 18px; }

/* ---------- Floating WhatsApp ---------- */
.wa-float { position: fixed; right: 20px; bottom: 20px; z-index: 80; width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff; display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(37,211,102,0.55); transition: transform 0.4s var(--ease); }
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; }
.wa-float::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #25d366; animation: ring 2.6s var(--ease) infinite; }
@keyframes ring { from { transform: scale(1); opacity: 0.7; } to { transform: scale(1.6); opacity: 0; } }

/* ---------- Reveal animations ---------- */
.js [data-reveal] { opacity: 0; transform: translate3d(0, 28px, 0); transition: opacity 0.9s var(--ease), transform 1s var(--ease); transition-delay: var(--d, 0s); }
.js [data-reveal="left"] { transform: translate3d(-36px, 0, 0); }
.js [data-reveal="right"] { transform: translate3d(36px, 0, 0); }
.js [data-reveal="scale"] { transform: scale(0.94); }
.js [data-reveal="fade"] { transform: none; }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js .hero h1 .line > span { transform: translate3d(0, 105%, 0); transition: transform 1.1s var(--ease); transition-delay: var(--d, 0s); }
.js .is-loaded .hero h1 .line > span, .js.is-loaded .hero h1 .line > span { transform: none; }
.js .hero-fade { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: var(--d, 0s); }
.js.is-loaded .hero-fade { opacity: 1; transform: none; }
.draw { stroke-dasharray: var(--len, 1000); stroke-dashoffset: var(--len, 1000); transition: stroke-dashoffset 2.2s var(--ease); transition-delay: var(--d, 0s); }
.js.is-loaded .draw, .is-in .draw { stroke-dashoffset: 0; }
html:not(.js) .draw { stroke-dashoffset: 0; }

/* ---------- Page-specific layouts ---------- */
.service-row { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(20px, 4vw, 56px); align-items: start; scroll-margin-top: calc(var(--header-h) + 24px); }
.service-row h2 { margin: 0; }
.service-row p { font-size: 1rem; }
.service-row .check-list { margin-top: 18px; }
.contact-split { grid-template-columns: 1fr 1.25fr; align-items: start; }
.mobile-nav a.m-link svg { width: 22px; height: 22px; color: var(--faint); }
.mobile-nav .m-contact a:hover { color: var(--green); }

/* ---------- Responsive ---------- */
@media (max-width: 1320px) {
  .nav-cta .btn-ghost { display: none; }
  .nav-links a { padding: 10px 11px; }
}
@media (max-width: 1080px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .menu-btn { display: block; }
  .regions { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .chain { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .chain::before { display: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(3, 1fr); row-gap: 36px; border-top: 0; }
  .tl-item { border-top: 1px solid var(--line-2); }
}
@media (max-width: 900px) {
  .hero-inner, .split, .split.wide-left, .service-row, .contact-split { grid-template-columns: 1fr; }
  .split > [style*="sticky"] { position: static !important; }
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 48px); }
  .hero-visual { max-width: 560px; margin: 0 auto; width: 100%; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .scroll-cue { display: none; }
}
@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .grid-2, .grid-3, .grid-4, .form-row, .form-actions { grid-template-columns: 1fr; }
  .regions { grid-template-columns: 1fr 1fr; }
  .chain { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .nav-cta .btn-primary { display: none; }
  .hero-actions .btn { flex: 1 1 100%; }
  .brand-text span { letter-spacing: 0.22em; }
  .map-wrap { aspect-ratio: 4 / 3; }
  .network-legend { position: static; padding: 0 18px 18px; }
  .wa-float { width: 52px; height: 52px; right: 16px; bottom: 16px; }
}
@media (max-width: 380px) {
  .regions { grid-template-columns: 1fr; }
  .specs { grid-template-columns: 1fr 1fr; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  .js [data-reveal], .js .hero-fade, .js .hero h1 .line > span { opacity: 1 !important; transform: none !important; }
  .draw { stroke-dashoffset: 0 !important; }
  .marquee-track { animation: none; }
}