/* ============================================================
   CelloRiver — Main Stylesheet
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-bg: #FAF7F2;
  --clr-bg-alt: #F3EDE3;
  --clr-dark: #1C1812;
  --clr-dark2: #2E2820;
  --clr-primary: #6B3F2A;
  --clr-primary-hover: #854E35;
  --clr-accent: #C08B5C;
  --clr-accent-light: #E8D0B5;
  --clr-text: #3A3028;
  --clr-muted: #7A6F64;
  --clr-border: #DDD3C5;
  --clr-white: #FFFFFF;
  --clr-section-dark: #1C1812;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;

  --max-w: 1160px;
  --header-h: 72px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.25s var(--ease);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.success-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--clr-primary); }

h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.2; color: var(--clr-dark); }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
h4 { font-size: 1rem; margin-bottom: 0.4rem; }

ul { list-style: none; }

/* ── Container ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.15s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-hover);
  border-color: var(--clr-primary-hover);
  color: var(--clr-white);
}

.btn-outline {
  background: transparent;
  color: var(--clr-dark);
  border-color: var(--clr-border);
}
.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
}

.btn-sm { padding: 9px 20px; font-size: 0.875rem; }
.btn-full { width: 100%; text-align: center; }

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}

.site-header.scrolled,
.site-header--solid {
  background: var(--clr-white);
  box-shadow: 0 1px 16px rgba(0,0,0,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--clr-dark);
  transition: color var(--transition);
}
.logo:hover { color: var(--clr-primary); }
.logo-symbol { font-size: 1.6rem; color: var(--clr-primary); line-height: 1; }
.logo-text { font-style: italic; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text);
  transition: color var(--transition);
}
.header-nav a:hover { color: var(--clr-primary); }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  height: 2px;
  background: var(--clr-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--clr-white);
  border-top: 1px solid var(--clr-border);
  padding: 20px 24px 28px;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-link {
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-text);
  padding: 12px 0;
  border-bottom: 1px solid var(--clr-border);
  transition: color var(--transition);
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover { color: var(--clr-primary); }
.cta-mobile {
  margin-top: 8px;
  color: var(--clr-primary);
  font-weight: 600;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(20, 15, 10, 0.75) 0%,
    rgba(20, 15, 10, 0.45) 55%,
    rgba(20, 15, 10, 0.15) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: var(--header-h);
  display: flex;
  align-items: center;
  min-height: 100vh;
}

.hero-text {
  max-width: 540px;
  color: var(--clr-white);
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent-light);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 600;
  color: var(--clr-white);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: 36px;
  max-width: 440px;
}

.btn-hero {
  padding: 16px 40px;
  font-size: 1rem;
}

/* ── Sections ─────────────────────────────────────────────── */
.section {
  padding: 96px 0;
}

.section-light { background: var(--clr-bg); }
.section-white { background: var(--clr-white); }
.section-dark  { background: var(--clr-section-dark); }
.section-split { background: var(--clr-bg-alt); }

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 16px;
}
.section-label.light { color: var(--clr-accent); }

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 56px;
  line-height: 1.15;
}
.section-title.light { color: var(--clr-white); }

.section-title-left {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 20px;
  line-height: 1.15;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--clr-muted);
  max-width: 620px;
  margin-bottom: 52px;
  line-height: 1.7;
}

/* ── Cards Grid ───────────────────────────────────────────── */
.cards-grid { display: grid; gap: 24px; }
.three-col { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  padding: 36px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: 0 8px 32px rgba(107, 63, 42, 0.1);
  transform: translateY(-3px);
}

.card-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  font-style: italic;
  color: var(--clr-accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--clr-dark);
}

.card p {
  font-size: 0.9rem;
  color: var(--clr-muted);
  line-height: 1.7;
}

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

.split-image {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
}
.split-image img {
  width: 100%;
  height: 440px;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.split-image:hover img { transform: scale(1.03); }

.split-desc {
  font-size: 1.05rem;
  color: var(--clr-muted);
  line-height: 1.7;
  margin-bottom: 36px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-primary);
  margin-top: 6px;
}

.feature-list strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 4px;
}

.feature-list p {
  font-size: 0.875rem;
  color: var(--clr-muted);
  line-height: 1.65;
  margin: 0;
}

/* ── Path Steps ───────────────────────────────────────────── */
.path-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  counter-reset: steps;
}

.path-step {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  padding: 36px 28px;
  position: relative;
  transition: background var(--transition);
}
.path-step:hover { background: rgba(255,255,255,0.08); }

.step-num {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-style: italic;
  color: var(--clr-accent);
  margin-bottom: 16px;
}

.step-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: 12px;
}

.step-content p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
}

/* ── Results ──────────────────────────────────────────────── */
.results-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.results-image {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0,0,0,0.12);
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.results-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.results-blocks {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.result-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--clr-border);
}
.result-block:first-child { padding-top: 0; }
.result-block:last-child { border-bottom: none; }

.result-period {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--clr-primary);
  margin-bottom: 10px;
  font-weight: 600;
}

.result-block p {
  font-size: 0.925rem;
  color: var(--clr-muted);
  line-height: 1.7;
  margin: 0;
}

/* ── FAQ ──────────────────────────────────────────────────── */
.faq-container { max-width: 760px; }

.faq-list {
  border-top: 1px solid var(--clr-border);
}

.faq-item {
  border-bottom: 1px solid var(--clr-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-dark);
  text-align: left;
  gap: 16px;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--clr-primary); }
.faq-question[aria-expanded="true"] { color: var(--clr-primary); }

.faq-icon {
  flex-shrink: 0;
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--clr-primary);
  line-height: 1;
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  overflow: hidden;
  transition: max-height var(--transition), opacity var(--transition);
}
.faq-answer p {
  padding-bottom: 20px;
  font-size: 0.925rem;
  color: var(--clr-muted);
  line-height: 1.75;
  margin: 0;
}

/* ── Form Section ─────────────────────────────────────────── */
.section-form {
  background: var(--clr-dark);
  padding: 96px 0;
}

.form-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.form-text { padding-top: 8px; }

.form-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-top: 20px;
}

.form-box {
  background: var(--clr-white);
  border-radius: 8px;
  padding: 40px 36px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-text);
  letter-spacing: 0.02em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"] {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--clr-border);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--clr-dark);
  background: var(--clr-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(107, 63, 42, 0.12);
}
.form-group input.error {
  border-color: #C0392B;
}

.form-check { gap: 8px; }

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--clr-muted);
  line-height: 1.55;
}
.checkbox-label input[type="checkbox"] { display: none; }

.checkmark {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--clr-border);
  border-radius: 3px;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
}
.checkbox-label input:checked ~ .checkmark {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
}
.checkbox-label input:checked ~ .checkmark::after {
  content: '';
  display: block;
  width: 10px;
  height: 6px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg) translate(1px, -1px);
}

.field-error {
  font-size: 0.8rem;
  color: #C0392B;
  min-height: 1em;
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--clr-dark2);
  color: rgba(255,255,255,0.6);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  padding: 60px 24px 48px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-logo { margin-bottom: 12px; }
.footer-logo .logo-text,
.footer-logo .logo-symbol { color: rgba(255,255,255,0.85); }
.footer-logo:hover .logo-text,
.footer-logo:hover .logo-symbol { color: var(--clr-accent); }

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
}

.footer-company {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  line-height: 1.65;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color var(--transition);
  line-height: 1.4;
}
.footer-col a:hover { color: var(--clr-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-bottom .container {
  padding-top: 20px;
  padding-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-bottom p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.site-footer--minimal .footer-bottom-only {
  padding: 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
}
.site-footer--minimal .footer-bottom-only p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}
.site-footer--minimal .footer-bottom-only a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}
.site-footer--minimal .footer-bottom-only a:hover { color: var(--clr-accent); }

/* ── Cookie Banner ────────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--clr-dark);
  border-top: 1px solid rgba(255,255,255,0.1);
  transform: translateY(100%);
  transition: transform 0.4s var(--ease);
}
.cookie-banner.visible { transform: translateY(0); }

.cookie-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-content p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.55;
  margin: 0;
}
.cookie-content p a {
  color: var(--clr-accent);
  text-decoration: underline;
}

/* ── Success Page ─────────────────────────────────────────── */
.success-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 48px) 24px 48px;
}

.success-card {
  max-width: 520px;
  width: 100%;
  text-align: center;
  padding: 56px 48px;
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}

.success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--clr-primary);
  color: white;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
}

.success-title {
  font-size: 2rem;
  margin-bottom: 16px;
}

.success-text {
  font-size: 1rem;
  color: var(--clr-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

.success-sub {
  font-size: 0.875rem;
  color: var(--clr-muted);
  margin-bottom: 32px;
}

/* ── Legal Pages ──────────────────────────────────────────── */
.legal-main {
  padding-top: calc(var(--header-h) + 60px);
  padding-bottom: 80px;
  min-height: 80vh;
}

.legal-container {
  max-width: 720px;
}

.legal-container h1 {
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  margin-bottom: 8px;
}

.legal-date {
  font-size: 0.85rem;
  color: var(--clr-muted);
  margin-bottom: 40px;
}

.legal-container h2 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin: 36px 0 12px;
}

.legal-container h3 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin: 20px 0 8px;
}

.legal-container p {
  font-size: 0.9rem;
  color: var(--clr-muted);
  line-height: 1.75;
  margin-bottom: 12px;
}

.legal-container ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 12px;
}

.legal-container ul li {
  font-size: 0.9rem;
  color: var(--clr-muted);
  line-height: 1.75;
  margin-bottom: 6px;
}

.legal-container a {
  color: var(--clr-primary);
}
.legal-container a:hover { color: var(--clr-primary-hover); }

/* ── Animations ───────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .three-col { grid-template-columns: repeat(2, 1fr); }
  .path-steps { grid-template-columns: repeat(2, 1fr); }
  .split-layout { grid-template-columns: 1fr; gap: 40px; }
  .split-image img { height: 320px; }
  .form-container { grid-template-columns: 1fr; gap: 40px; }
  .results-row { grid-template-columns: 1fr; }
  .results-image { position: static; }
  .results-image img { height: 280px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero-title { font-size: 2.2rem; }
  .hero-sub { font-size: 0.95rem; }

  .header-nav { display: none; }
  .burger { display: flex; }

  .three-col { grid-template-columns: 1fr; }
  .path-steps { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-links { grid-template-columns: 1fr 1fr; }

  .form-box { padding: 28px 20px; }
  .success-card { padding: 36px 24px; }

  .cookie-content { flex-direction: column; align-items: flex-start; }
  .cookie-content .btn { align-self: flex-start; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.9rem; }
  .section-title { font-size: 1.6rem; }
  .footer-links { grid-template-columns: 1fr; }
}