/* AlgaeSol — brand tokens */
:root {
  --navy: #0b2451;
  --ocean: #054d8e;
  --teal: #117da0;
  --green: #34c7a5;
  --mint: #7ff0cf;
  --body: #3a4a63;
  --tint: #eef4f8;
  --grad: linear-gradient(105deg, #34c7a5, #117da0);
  --shadow: 0 20px 45px -25px rgba(11, 36, 81, 0.4);
  --pad-x: clamp(20px, 4vw, 48px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  font-family: 'Montserrat', 'Tajawal', sans-serif;
  color: var(--navy);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
[dir="rtl"] body, [dir="rtl"] { font-family: 'Tajawal', 'Montserrat', sans-serif; }
[dir="rtl"] .h2, [dir="rtl"] .hero-title { letter-spacing: 0; }

a { color: var(--teal); text-decoration: none; transition: color .25s; }
a:hover { color: var(--green); }
img { display: block; max-width: 100%; }
::selection { background: var(--green); color: #fff; }

.container { max-width: 1240px; margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.section { padding: clamp(72px, 10vw, 130px) 0; position: relative; }
.section.tint { background: var(--tint); }

/* Typography */
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 20px; }
[dir="rtl"] .eyebrow { letter-spacing: 0; }
.eyebrow.mint { color: var(--mint); }
.eyebrow.teal { color: var(--teal); }
.h2 { font-size: clamp(30px, 3.6vw, 48px); font-weight: 800; letter-spacing: -0.5px; line-height: 1.12; margin-bottom: 22px; }
.h2.white { color: #fff; }
.body { color: var(--body); font-size: clamp(16px, 1.3vw, 18px); line-height: 1.7; max-width: 65ch; }
.body.white-soft { color: rgba(255, 255, 255, 0.88); }

/* Nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(11,36,81,0.08); transform: translateY(0); transition: transform .35s ease, box-shadow .35s; }
.nav.hidden { transform: translateY(-100%); }
.nav.scrolled { box-shadow: 0 8px 30px -18px rgba(11,36,81,0.35); }
.nav-inner { max-width: 1240px; margin: 0 auto; padding: 0 var(--pad-x); height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-logo img { height: 46px; width: auto; }
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2vw, 30px); }
.nav-links a { color: var(--navy); font-size: 14px; font-weight: 600; position: relative; }
.nav-links a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -6px; height: 2px; background: var(--grad); transition: right .3s ease; }
.nav-links a:hover::after { right: 0; }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.lang-toggle { display: flex; align-items: center; border: 1px solid rgba(11,36,81,0.18); border-radius: 999px; overflow: hidden; font-size: 12px; font-weight: 700; }
.lang-btn { border: none; background: transparent; color: var(--navy); padding: 8px 13px; cursor: pointer; font: inherit; font-weight: 700; transition: background .25s, color .25s; }
.lang-btn.active { background: var(--grad); color: #fff; }
.nav-cta { background: var(--grad); color: #fff !important; font-size: 13px; font-weight: 700; padding: 11px 20px; border-radius: 999px; transition: transform .2s, box-shadow .25s; box-shadow: 0 10px 25px -12px rgba(17,125,160,0.6); }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -12px rgba(17,125,160,0.75); }
.nav-cta:active { transform: scale(0.98); }
.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-burger span { width: 22px; height: 2px; background: var(--navy); transition: transform .3s, opacity .3s; }
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu { display: none; flex-direction: column; padding: 12px var(--pad-x) 24px; background: rgba(255,255,255,0.97); border-bottom: 1px solid rgba(11,36,81,0.08); }
.mobile-menu a { color: var(--navy); font-weight: 600; padding: 12px 0; border-bottom: 1px solid rgba(11,36,81,0.06); }
.mobile-menu.open { display: flex; }

/* Hero */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-img { position: absolute; inset: -8% 0; background: url('https://d8j0ntlcm91z4.cloudfront.net/user_3GENKRISEoAxWWjIExNQKiRY43K/hf_20260710_193114_678b929c-32f8-4990-8355-125cf037c1e8_min.webp') center/cover no-repeat, var(--navy); will-change: transform; }
.hero-grad { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,36,81,0.45) 0%, rgba(11,36,81,0.12) 38%, rgba(11,36,81,0.88) 100%); }
.hero-cells { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-content { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(56px, 9vh, 120px); }
.hero-block { max-width: 840px; }
.hero-title { color: #fff; font-size: clamp(38px, 6vw, 76px); line-height: 1.05; font-weight: 800; letter-spacing: -1px; margin-bottom: 26px; }
.hero-sub { color: rgba(255,255,255,0.92); font-size: clamp(17px, 1.5vw, 21px); line-height: 1.65; max-width: 640px; margin-bottom: 38px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }

.btn-gradient { background: var(--grad); color: #fff !important; font-size: 15px; font-weight: 700; padding: 16px 32px; border-radius: 999px; display: inline-block; box-shadow: 0 16px 35px -14px rgba(17,125,160,0.7); transition: box-shadow .3s; }
.btn-gradient:hover { box-shadow: 0 20px 45px -14px rgba(52,199,165,0.8); }
.btn-gradient:active { transform: scale(0.98); }
.btn-gradient.big { font-size: 16px; padding: 18px 42px; margin-top: 10px; }
.btn-glass { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.5); color: #fff !important; font-size: 15px; font-weight: 700; padding: 16px 32px; border-radius: 999px; display: inline-block; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); transition: background .3s, border-color .3s; }
.btn-glass:hover { background: rgba(255,255,255,0.22); border-color: rgba(255,255,255,0.8); }
.btn-glass:active { transform: scale(0.98); }

/* Stat strip */
.strip { background: var(--navy); color: #fff; padding: clamp(40px, 5vw, 64px) 0; position: relative; overflow: hidden; }
.strip::before { content: ''; position: absolute; inset: 0; background: radial-gradient(1200px 300px at 20% 0%, rgba(52,199,165,0.18), transparent 60%); }
.strip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; position: relative; }
.strip-item { text-align: center; }
.strip-value { font-size: clamp(34px, 4vw, 52px); font-weight: 800; background: linear-gradient(105deg, #7ff0cf, #34c7a5 45%, #4db4d8); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 8px; }
.strip-label { color: rgba(255,255,255,0.78); font-size: 15px; font-weight: 500; }

/* About */
.grid-2 { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.mv-block { border-inline-start: 3px solid var(--green); padding-inline-start: 20px; margin-top: 26px; }
.mv-block.vision-b { border-color: var(--teal); }
.mv-block h3 { font-size: 15px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--teal); margin-bottom: 8px; }
[dir="rtl"] .mv-block h3 { letter-spacing: 0; }
.mv-block p { color: var(--body); line-height: 1.65; }
.about-img { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4 / 5; }
.parallax-frame { position: relative; }
.parallax-img { width: 100%; height: 115%; object-fit: cover; will-change: transform; }

/* Why */
.section-intro { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.section-intro.center { margin-left: auto; margin-right: auto; text-align: center; }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why-card { background: #fff; border-radius: 18px; padding: 34px 26px; box-shadow: 0 14px 35px -22px rgba(11,36,81,0.35); transition: transform .35s cubic-bezier(.2,.8,.25,1), box-shadow .35s; }
.why-card:hover { transform: translateY(-6px); box-shadow: 0 26px 50px -22px rgba(11,36,81,0.45); }
.why-value { font-size: clamp(26px, 2.4vw, 36px); font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 10px; }
.why-card p { color: var(--body); font-size: 15px; line-height: 1.55; }

/* Products */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.prod-card { background: #fff; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); transition: transform .4s cubic-bezier(.2,.8,.25,1), box-shadow .4s; }
.prod-card:hover { transform: translateY(-8px); box-shadow: 0 32px 60px -25px rgba(11,36,81,0.5); }
.prod-img { aspect-ratio: 16 / 10; overflow: hidden; }
.prod-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.8,.25,1); }
.prod-card:hover .prod-img img { transform: scale(1.06); }
.prod-body { padding: 26px 26px 30px; }
.prod-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.prod-body p { color: var(--body); font-size: 15px; line-height: 1.6; }

/* Dark bands */
.dark-band { color: #fff; overflow: hidden; }
.band-bg { position: absolute; inset: -12% 0; background: var(--navy) center/cover no-repeat; will-change: transform; }
.band-grad { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11,36,81,0.92) 10%, rgba(5,77,142,0.72) 55%, rgba(11,36,81,0.55)); }
.band-content { position: relative; z-index: 2; }
.grid-2b { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.glass-stack { display: flex; flex-direction: column; gap: 18px; }
.glass-card { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.22); border-radius: 16px; padding: 24px 26px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: background .3s, transform .3s; }
.glass-card:hover { background: rgba(255,255,255,0.16); transform: translateX(4px); }
[dir="rtl"] .glass-card:hover { transform: translateX(-4px); }
.glass-value { font-size: 22px; font-weight: 800; color: var(--mint); margin-bottom: 6px; }
.glass-card p { color: rgba(255,255,255,0.85); font-size: 14.5px; line-height: 1.55; }
.center-content { text-align: center; max-width: 780px; margin: 0 auto; }

/* Pillars */
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.pillar-card { background: #fff; border-radius: 20px; padding: 38px 30px; box-shadow: 0 14px 35px -22px rgba(11,36,81,0.35); transition: transform .35s cubic-bezier(.2,.8,.25,1), box-shadow .35s; }
.pillar-card:hover { transform: translateY(-6px); box-shadow: 0 26px 50px -22px rgba(11,36,81,0.45); }
.pillar-icon { width: 58px; height: 58px; border-radius: 14px; background: linear-gradient(120deg, #34c7a5, #117da0 55%, #054d8e); display: flex; align-items: center; justify-content: center; color: #fff; margin-bottom: 22px; }
.pillar-icon svg { width: 28px; height: 28px; }
.pillar-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.pillar-card p { color: var(--body); font-size: 15px; line-height: 1.6; }

/* Contact */
.contact .con-meta { margin-top: 26px; color: var(--body); font-size: 15px; }

/* Footer */
.footer { background: var(--navy); color: #fff; padding: clamp(48px, 6vw, 72px) 0 40px; }
.footer-grid { display: grid; grid-template-columns: auto 1fr auto; gap: 36px; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-mark { height: 52px; width: auto; }
.footer-word { font-weight: 800; letter-spacing: 3px; font-size: 18px; }
[dir="rtl"] .footer-word { letter-spacing: 1px; }
.footer-tag { color: rgba(255,255,255,0.65); font-size: 13px; margin-top: 2px; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500; }
.footer-links a:hover { color: var(--mint); }
.footer-meta { text-align: end; color: rgba(255,255,255,0.55); font-size: 13px; display: flex; flex-direction: column; gap: 4px; }

/* Reveal helpers (JS adds .in) */
.reveal-up { opacity: 0; transform: translateY(28px); }
.no-motion .reveal-up, .reveal-up.in { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
  .grid-2, .grid-2b { grid-template-columns: 1fr; }
  .about-img { aspect-ratio: 16 / 11; order: -1; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .prod-grid, .pillar-grid { grid-template-columns: 1fr; }
  .strip-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-meta { text-align: center; }
}
@media (max-width: 560px) {
  .why-grid { grid-template-columns: 1fr; }
  .hero-ctas a { width: 100%; text-align: center; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal-up { opacity: 1; transform: none; }
}