/* RIVS Business Solutions — shared stylesheet */

:root {
  --teal-900: #063f3a;
  --teal-700: #0b6b5f;
  --teal-600: #0e8f78;
  --teal-500: #14a389;
  --teal-400: #2ebd92;
  --blue-600: #0a6ea8;
  --ink: #0b1720;
  --ink-soft: #45535c;
  --mist: #f5f9f8;
  --mist-2: #eef4f3;
  --line: #e2e9e7;
  --white: #ffffff;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow-soft: 0 20px 60px -20px rgba(6, 63, 58, 0.25);
  --shadow-card: 0 10px 30px -12px rgba(11, 23, 32, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(11, 23, 32, 0.06);
  transition: background 0.3s var(--ease);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
}

.nav__brand img { height: 26px; width: 26px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav__links a {
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 500;
  transition: color 0.2s var(--ease);
}

.nav__links a:hover, .nav__links a.is-active { color: var(--teal-700); }

.nav__cta {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.nav__cta:hover { background: var(--teal-700); transform: translateY(-1px); }

.nav__toggle {
  display: none;
  width: 36px; height: 36px;
  border: none;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav__toggle svg { width: 22px; height: 22px; }

.nav__mobile {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 20px 24px 28px;
  flex-direction: column;
  gap: 4px;
  z-index: 99;
}
.nav__mobile.is-open { display: flex; }
.nav__mobile a {
  padding: 14px 4px;
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid var(--mist-2);
  color: var(--ink);
}
.nav__mobile .btn { margin-top: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.btn--primary {
  background: linear-gradient(135deg, var(--teal-400), var(--teal-700));
  color: var(--white);
  box-shadow: 0 12px 24px -8px rgba(14, 143, 120, 0.55);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px -8px rgba(14, 143, 120, 0.65); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn--ghost:hover { border-color: var(--teal-500); color: var(--teal-700); }

.btn--light {
  background: var(--white);
  color: var(--teal-700);
}
.btn--light:hover { transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 190px 0 140px;
  overflow: hidden;
  background: radial-gradient(1200px 600px at 50% -10%, #e8f7f2 0%, var(--white) 60%);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--teal-700);
  background: rgba(20, 163, 137, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 22px;
  max-width: 880px;
}

.hero h1 span {
  background: linear-gradient(100deg, var(--teal-600), var(--blue-600));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lede {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--ink-soft);
  max-width: 620px;
  line-height: 1.6;
  margin: 0 0 40px;
}

.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 90px; }

.hero__petals {
  position: absolute;
  top: -120px;
  right: -160px;
  width: 640px;
  height: 640px;
  opacity: 0.9;
  z-index: -1;
}

.hero__petals-2 {
  position: absolute;
  bottom: -200px;
  left: -180px;
  width: 480px;
  height: 480px;
  opacity: 0.5;
  z-index: -1;
}

/* ---------- Stat strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 40px;
}

.stat-strip .stat b {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--teal-700);
  margin-bottom: 4px;
}
.stat-strip .stat span { font-size: 14px; color: var(--ink-soft); }

/* ---------- Sections ---------- */
section { position: relative; }

.section {
  padding: 120px 0;
}

.section--tint {
  background: var(--mist);
}

.section-head {
  max-width: 640px;
  margin: 0 auto 64px;
  text-align: center;
}

.section-head .kicker {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: 14px;
  display: block;
}

.section-head h2 {
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 16px;
}

.section-head p {
  font-size: 17px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
}

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); }

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(20,163,137,0.14), rgba(10,110,168,0.14));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--teal-700);
}
.card__icon svg { width: 26px; height: 26px; }

.card h3 { font-size: 19px; margin: 0 0 10px; letter-spacing: -0.01em; }
.card p { font-size: 15px; color: var(--ink-soft); line-height: 1.65; margin: 0; }

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--teal-700);
}
.card__link svg { width: 14px; height: 14px; transition: transform 0.2s var(--ease); }
.card:hover .card__link svg { transform: translateX(4px); }

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Split / feature blocks ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.split__visual {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--teal-900), var(--teal-600) 60%, var(--blue-600));
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.split__visual svg { width: 62%; height: 62%; opacity: 0.9; }

.split ul.feature-list { margin-top: 28px; }
.split ul.feature-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink-soft);
}
.split ul.feature-list li:first-child { border-top: none; }
.split ul.feature-list svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--teal-600); margin-top: 1px; }
.split ul.feature-list strong { color: var(--ink); }

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process__step {
  position: relative;
  padding: 32px 24px 0;
}
.process__num {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  background: linear-gradient(135deg, var(--teal-500), var(--blue-600));
  width: 34px; height: 34px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.process__step h4 { font-size: 16px; margin: 0 0 8px; }
.process__step p { font-size: 14px; color: var(--ink-soft); margin: 0; line-height: 1.6; }

/* ---------- CTA banner ---------- */
.cta-banner {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--teal-700), var(--teal-500) 55%, var(--blue-600));
  padding: 72px 64px;
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 0 0 16px; letter-spacing: -0.02em; }
.cta-banner p { font-size: 17px; opacity: 0.9; max-width: 560px; margin: 0 auto 36px; }
.cta-banner__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 32px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer__brand { display: flex; align-items: center; gap: 10px; color: var(--white); font-weight: 600; margin-bottom: 14px; }
.footer__brand img { height: 22px; }
.footer p.tagline { font-size: 14px; line-height: 1.6; max-width: 260px; }
.footer h5 { color: var(--white); font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 18px; }
.footer li { margin-bottom: 12px; font-size: 14px; }
.footer a:hover { color: var(--white); }
.footer__bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; font-size: 13px; flex-wrap: wrap; gap: 12px;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding: 170px 0 90px;
  background: radial-gradient(1000px 500px at 50% -20%, #e8f7f2 0%, var(--white) 60%);
  text-align: center;
}
.page-hero h1 { font-size: clamp(36px, 5vw, 58px); letter-spacing: -0.02em; margin: 0 0 18px; }
.page-hero p { font-size: 18px; color: var(--ink-soft); max-width: 600px; margin: 0 auto; line-height: 1.6; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: flex-start;
}
.contact-info .item { display: flex; gap: 16px; margin-bottom: 28px; }
.contact-info .item .icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(20,163,137,0.1); color: var(--teal-700);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info .item .icon svg { width: 20px; height: 20px; }
.contact-info .item h4 { margin: 0 0 4px; font-size: 15px; }
.contact-info .item p, .contact-info .item a { margin: 0; font-size: 15px; color: var(--ink-soft); }

.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-card);
}
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--ink); }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--line);
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: var(--mist);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--teal-500);
  background: var(--white);
}
.field textarea { resize: vertical; min-height: 130px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 13px; color: var(--ink-soft); margin-top: 14px; }
.form-status { font-size: 14px; margin-top: 14px; display: none; }
.form-status.is-success { display: block; color: var(--teal-700); }
.form-status.is-error { display: block; color: #b3311c; }

/* ---------- Map placeholder ---------- */
.map-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  margin-top: 40px;
}
.map-frame iframe { width: 100%; height: 320px; border: 0; display: block; }

/* ---------- About ---------- */
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.timeline { border-left: 2px solid var(--line); margin-left: 8px; }
.timeline .t-item { position: relative; padding: 0 0 40px 32px; }
.timeline .t-item::before {
  content: "";
  position: absolute; left: -7px; top: 2px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--teal-500);
  box-shadow: 0 0 0 4px rgba(20,163,137,0.15);
}
.timeline .t-item h4 { margin: 0 0 6px; font-size: 16px; }
.timeline .t-item p { margin: 0; font-size: 14px; color: var(--ink-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .hero { padding: 150px 0 90px; }
  .section { padding: 80px 0; }
  .cta-banner { padding: 48px 28px; }
  .footer__top { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
}