/* ==========================================================================
   Purofobe — Packaged Drinking Water
   Shared stylesheet for all pages
   ========================================================================== */

:root {
  --blue-900: #062c4d;
  --blue-800: #0a4d8c;
  --blue-700: #0369a1;
  --blue-600: #0284c7;
  --cyan-500: #06b6d4;
  --cyan-400: #22d3ee;
  --aqua-100: #e0f7fb;
  --sky-50: #f0f9ff;
  --ink: #0f2438;
  --slate: #46617a;
  --line: #dbeafc;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(6, 44, 77, .08), 0 1px 2px rgba(6, 44, 77, .06);
  --shadow-md: 0 10px 30px rgba(6, 44, 77, .10);
  --shadow-lg: 0 24px 60px rgba(6, 44, 77, .16);
  --radius: 16px;
  --radius-lg: 26px;
  --maxw: 1160px;
  --grad: linear-gradient(135deg, #0a4d8c 0%, #0284c7 45%, #06b6d4 100%);
  --grad-soft: linear-gradient(135deg, #e0f7fb 0%, #f0f9ff 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--blue-700); text-decoration: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; color: var(--ink); }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.22rem; font-weight: 700; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--aqua-100);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.lead { font-size: 1.1rem; color: var(--slate); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .98rem;
  padding: 13px 26px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px rgba(2, 132, 199, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(2, 132, 199, .45); }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.55); }
.btn-ghost:hover { background: rgba(255,255,255,.28); }
.btn-outline { background: #fff; color: var(--blue-700); border-color: var(--line); }
.btn-outline:hover { border-color: var(--cyan-500); transform: translateY(-2px); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.9);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.3rem; color: var(--ink); }
.brand .logo {
  width: 38px; height: 38px; border-radius: 11px; background: var(--grad);
  display: grid; place-items: center; box-shadow: var(--shadow-sm);
}
.brand .logo svg { width: 21px; height: 21px; }
.brand small { display: block; font-size: .62rem; font-weight: 600; letter-spacing: .18em; color: var(--blue-600); text-transform: uppercase; margin-top: -3px; }

.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
  color: var(--ink); font-weight: 600; font-size: .96rem;
  padding: 9px 15px; border-radius: 10px; transition: background .15s, color .15s;
}
.nav-links a:hover { background: var(--sky-50); color: var(--blue-700); }
.nav-links a.active { color: var(--blue-700); background: var(--aqua-100); }
.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: 10px;
}
.nav-toggle span { display: block; width: 22px; height: 2.4px; background: var(--ink); margin: 4px auto; border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--grad); color: #fff; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 82% 18%, rgba(255,255,255,.18), transparent 42%),
    radial-gradient(circle at 12% 88%, rgba(255,255,255,.12), transparent 40%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding-top: 74px; padding-bottom: 84px; }
.hero h1 { color: #fff; }
.hero p { color: rgba(255,255,255,.92); font-size: 1.16rem; margin: 20px 0 30px; max-width: 46ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 30px; margin-top: 38px; flex-wrap: wrap; }
.hero-stats div strong { display: block; font-size: 1.9rem; font-weight: 800; }
.hero-stats div span { font-size: .86rem; color: rgba(255,255,255,.82); }

.hero-art { position: relative; display: grid; place-items: center; }
.bottle {
  width: 190px; height: 380px; position: relative;
  filter: drop-shadow(0 30px 40px rgba(0,0,0,.28));
  animation: float 5s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.ring { position: absolute; border: 2px solid rgba(255,255,255,.25); border-radius: 50%; }
.ring.r1 { width: 320px; height: 320px; top: 20px; left: 50%; transform: translateX(-50%); }
.ring.r2 { width: 420px; height: 420px; top: -30px; left: 50%; transform: translateX(-50%); border-color: rgba(255,255,255,.14); }

/* ---------- Sections ---------- */
section { padding: 76px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-head p { color: var(--slate); font-size: 1.06rem; margin-top: 12px; }
.tint { background: var(--grad-soft); }

/* ---------- Feature grid ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card .ico {
  width: 54px; height: 54px; border-radius: 14px; background: var(--grad-soft);
  display: grid; place-items: center; margin-bottom: 18px; color: var(--blue-600);
}
.card .ico svg { width: 27px; height: 27px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--slate); font-size: .97rem; }

/* ---------- Product cards ---------- */
.product {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
  display: flex; flex-direction: column;
}
.product:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product .visual { background: var(--grad-soft); padding: 34px; display: grid; place-items: center; position: relative; }
.product .visual .cap { position: absolute; top: 14px; right: 14px; font-size: .72rem; font-weight: 700; color: var(--blue-700); background: #fff; padding: 5px 11px; border-radius: 999px; box-shadow: var(--shadow-sm); }
.mini-bottle { width: 70px; height: 150px; filter: drop-shadow(0 12px 16px rgba(6,44,77,.2)); }
.jar { width: 116px; height: 150px; filter: drop-shadow(0 12px 16px rgba(6,44,77,.2)); }
.product .body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.product .body h3 { margin-bottom: 4px; }
.product .size { color: var(--cyan-500); font-weight: 700; font-size: .9rem; }
.product .body p { color: var(--slate); font-size: .93rem; margin: 10px 0 16px; flex: 1; }
.product .pack { font-size: .85rem; color: var(--slate); border-top: 1px dashed var(--line); padding-top: 14px; }
.product .pack b { color: var(--ink); }

/* ---------- Steps (process) ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 22px 24px; box-shadow: var(--shadow-sm); }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: -18px; left: 22px;
  width: 40px; height: 40px; border-radius: 12px; background: var(--grad); color: #fff;
  display: grid; place-items: center; font-weight: 800; box-shadow: var(--shadow-sm);
}
.step h3 { margin: 12px 0 6px; font-size: 1.08rem; }
.step p { color: var(--slate); font-size: .92rem; }

/* ---------- Certifications strip ---------- */
.certs { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.cert {
  display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line);
  border-radius: 999px; padding: 12px 22px; box-shadow: var(--shadow-sm); font-weight: 700; color: var(--ink);
}
.cert .dot { width: 34px; height: 34px; border-radius: 50%; background: var(--grad-soft); display: grid; place-items: center; color: var(--blue-600); }
.cert small { display: block; font-weight: 500; color: var(--slate); font-size: .78rem; }

/* ---------- Split (about / image + text) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.split .panel {
  background: var(--grad); border-radius: var(--radius-lg); min-height: 360px; position: relative; overflow: hidden;
  display: grid; place-items: center; color: #fff; box-shadow: var(--shadow-md);
}
.split .panel::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 70% 20%, rgba(255,255,255,.2), transparent 45%); }
.checklist { list-style: none; margin-top: 22px; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--slate); }
.checklist .tick { flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%; background: var(--aqua-100); color: var(--blue-700); display: grid; place-items: center; margin-top: 2px; }
.checklist b { color: var(--ink); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--grad); color: #fff; border-radius: var(--radius-lg); padding: 52px 44px; text-align: center; box-shadow: var(--shadow-md); position: relative; overflow: hidden; }
.cta-band::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 15% 80%, rgba(255,255,255,.16), transparent 40%); }
.cta-band h2 { color: #fff; position: relative; z-index: 2; }
.cta-band p { color: rgba(255,255,255,.9); max-width: 52ch; margin: 12px auto 26px; position: relative; z-index: 2; }
.cta-band .hero-cta { justify-content: center; position: relative; z-index: 2; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 44px; align-items: start; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); margin-bottom: 18px; display: flex; gap: 16px; align-items: flex-start; }
.info-card .ico { width: 48px; height: 48px; border-radius: 12px; background: var(--grad-soft); display: grid; place-items: center; color: var(--blue-600); flex: 0 0 auto; }
.info-card h3 { font-size: 1.05rem; margin-bottom: 3px; }
.info-card p, .info-card a { color: var(--slate); font-size: .96rem; }

.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-md); }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; color: var(--ink); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px;
  font: inherit; color: var(--ink); background: #fbfdff; transition: border .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan-500); box-shadow: 0 0 0 3px rgba(6,182,212,.15); }
.field textarea { min-height: 110px; resize: vertical; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form .btn { width: 100%; justify-content: center; margin-top: 6px; }
.form .hint { font-size: .82rem; color: var(--slate); text-align: center; margin-top: 12px; }

/* ---------- Page banner ---------- */
.page-banner { background: var(--grad); color: #fff; padding: 60px 0 66px; position: relative; overflow: hidden; }
.page-banner::after { content:""; position:absolute; inset:0; background: radial-gradient(circle at 85% 15%, rgba(255,255,255,.16), transparent 42%); }
.page-banner .wrap { position: relative; z-index: 2; }
.page-banner h1 { color: #fff; }
.page-banner p { color: rgba(255,255,255,.9); margin-top: 12px; max-width: 56ch; }
.crumbs { font-size: .85rem; color: rgba(255,255,255,.8); margin-bottom: 14px; }
.crumbs a { color: rgba(255,255,255,.95); }

/* ---------- Footer ---------- */
.site-footer { background: var(--blue-900); color: #c7ddf0; padding: 56px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 34px; }
.site-footer .brand { color: #fff; }
.site-footer .brand small { color: var(--cyan-400); }
.site-footer p { color: #a9c6df; font-size: .93rem; margin-top: 14px; max-width: 34ch; }
.footer-col h4 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a, .footer-col li { color: #a9c6df; font-size: .94rem; display: block; padding: 4px 0; list-style: none; }
.footer-col a:hover { color: var(--cyan-400); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .86rem; color: #8fb2cf; }

/* ---------- WhatsApp float ---------- */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 58px; height: 58px; border-radius: 50%; background: #25d366;
  display: grid; place-items: center; box-shadow: 0 10px 26px rgba(37,211,102,.5);
  transition: transform .18s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 22px 20px; gap: 4px;
    box-shadow: var(--shadow-md); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { margin: 8px 0 0; }
  .hero .wrap { grid-template-columns: 1fr; text-align: center; padding-bottom: 60px; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-cta, .hero-stats { justify-content: center; }
  .hero-art { display: none; }
  .grid-3, .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps { row-gap: 34px; margin-top: 10px; }
}
@media (max-width: 540px) {
  .grid-3, .grid-4, .steps, .row-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .cta-band { padding: 40px 24px; }
}