/* ================= Roberto Creations — brand system =================
   Palette: warm ivory canvas, espresso ink, terracotta signature accent.
   Type: Fraunces (display serif) + Inter (UI sans).
===================================================================== */
:root {
  --ivory: #FAF5EE;
  --ivory-deep: #F1E8DC;
  --ink: #241C15;
  --ink-soft: #5C5147;
  --terra: #B4552D;
  --terra-deep: #93401F;
  --terra-soft: #E9C9B8;
  --cream: #FFF7EF;
  --line: rgba(36, 28, 21, 0.12);
  --dark: #201812;
  --dark-2: #2B2118;
  --on-dark: #F4EBE0;
  --on-dark-soft: #B9AB9C;
  --radius: 18px;
  --shadow: 0 18px 50px -18px rgba(36, 28, 21, 0.25);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--ivory);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
.container { width: min(1160px, 92%); margin: 0 auto; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h1 em, h2 em { font-style: italic; color: var(--terra); }
.section-dark h2 em { color: #E08B5F; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--terra); margin-bottom: 1rem;
}
.eyebrow-light { color: #E08B5F; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  padding: 0.85rem 1.7rem; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.btn-primary { background: var(--terra); color: var(--cream); box-shadow: 0 10px 24px -10px rgba(180, 85, 45, 0.55); }
.btn-primary:hover { background: var(--terra-deep); transform: translateY(-2px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-sm { padding: 0.6rem 1.25rem; font-size: 0.88rem; }
.btn-block { width: 100%; border: none; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 245, 238, 0.85); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.8rem 0; gap: 1rem; }
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; color: inherit; }
.brand-mark {
  display: block; width: 44px; height: 44px; flex-shrink: 0;
  filter: drop-shadow(0 4px 10px rgba(138, 59, 29, 0.35));
  transition: transform 0.2s ease;
}
.brand:hover .brand-mark { transform: rotate(-3deg) scale(1.04); }
.brand-word { font-family: var(--font-display); font-weight: 600; font-size: 1.12rem; line-height: 1.15; display: flex; flex-direction: column; }
.brand-sub { font-family: var(--font-body); font-weight: 500; font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.nav-links { display: flex; gap: 1.6rem; }
.nav-links a { text-decoration: none; color: var(--ink-soft); font-weight: 500; font-size: 0.92rem; transition: color 0.15s; }
.nav-links a:hover { color: var(--terra); }
.nav-cta { display: flex; align-items: center; gap: 0.8rem; }
.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ---------- hero ---------- */
.hero { padding: 5.5rem 0 3.5rem; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; top: -30%; right: -12%; width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(180,85,45,0.14), transparent 65%);
  border-radius: 50%; pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 3.5rem; align-items: center; }
.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 1.4rem 0 2rem; max-width: 34rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-facts { list-style: none; display: flex; gap: 2.4rem; margin-top: 2.6rem; flex-wrap: wrap; }
.hero-facts li { display: flex; flex-direction: column; }
.hero-facts strong { font-family: var(--font-display); font-size: 1.5rem; color: var(--terra); }
.hero-facts span { font-size: 0.82rem; color: var(--ink-soft); }

.hero-card {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.6rem; position: relative;
}
.dash-head { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1.2rem; }
.dash-dot { width: 8px; height: 8px; border-radius: 50%; background: #3FA36C; box-shadow: 0 0 0 4px rgba(63,163,108,0.18); }
.dash-label { display: block; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); }
.dash-value { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; line-height: 1.1; }
.dash-delta { display: inline-block; margin-top: 0.2rem; font-size: 0.8rem; font-weight: 600; color: #2E7D51; }
.dash-bars { display: flex; align-items: flex-end; gap: 7px; height: 92px; margin: 1.4rem 0; }
.dash-bars i {
  flex: 1; height: var(--h); border-radius: 5px 5px 2px 2px;
  background: linear-gradient(180deg, var(--terra) 0%, var(--terra-soft) 130%);
  animation: barGrow 0.9s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
.dash-bars i:nth-child(odd) { opacity: 0.75; }
@keyframes barGrow { from { height: 0; } to { height: var(--h); } }
.dash-row { display: flex; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 1rem; }
.dash-row strong { font-family: var(--font-display); font-size: 1.25rem; }

.stack-strip { margin-top: 4rem; display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.stack-label { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; }
.stack-strip ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.stack-strip li {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.85rem; font-weight: 600; color: var(--ink-soft);
  border: 1px solid var(--line); border-radius: 999px; padding: 0.45rem 1rem; background: var(--cream);
  transition: color 0.15s ease, border-color 0.15s ease;
}
.stack-strip li:hover { color: var(--terra-deep); border-color: var(--terra-soft); }
.stack-ic { width: 15px; height: 15px; flex-shrink: 0; opacity: 0.85; }
.stack-ic-wide { width: 19px; }

/* ---------- sections ---------- */
.section { padding: 5.5rem 0; }
.section-head { max-width: 44rem; margin-bottom: 3.2rem; }
.section-sub { color: var(--ink-soft); font-size: 1.05rem; margin-top: 1rem; }
.section-tint { background: var(--ivory-deep); }
.section-dark { background: var(--dark); color: var(--on-dark); }
.section-dark .section-sub { color: var(--on-dark-soft); }

/* ---------- services ---------- */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.card {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card-num { font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; color: var(--terra); }
.card h3 { font-size: 1.28rem; margin: 0.7rem 0 0.7rem; }
.card p { font-size: 0.92rem; color: var(--ink-soft); }
.card-list { list-style: none; margin-top: 1.1rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.card-list li { font-size: 0.85rem; font-weight: 500; padding: 0.22rem 0 0.22rem 1.2rem; position: relative; }
.card-list li::before { content: "—"; position: absolute; left: 0; color: var(--terra); }

/* ---------- AI ---------- */
.ai-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.ai-card {
  background: var(--dark-2); border: 1px solid rgba(244, 235, 224, 0.1); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; transition: transform 0.2s ease, border-color 0.2s ease;
}
.ai-card:hover { transform: translateY(-6px); border-color: rgba(224, 139, 95, 0.5); }
.ai-icon { font-size: 1.6rem; color: #E08B5F; }
.ai-card h3 { font-size: 1.2rem; margin: 0.8rem 0 0.6rem; }
.ai-card p { font-size: 0.9rem; color: var(--on-dark-soft); }

/* ---------- results ---------- */
.results-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  background: var(--dark); color: var(--on-dark); border-radius: var(--radius);
  padding: 2.2rem 2rem; margin-bottom: 2.8rem;
}
.results-band div { display: flex; flex-direction: column; align-items: center; text-align: center; }
.results-band strong { font-family: var(--font-display); font-size: clamp(1.8rem, 3.4vw, 2.6rem); font-weight: 700; color: #E08B5F; }
.results-band span { font-size: 0.82rem; color: var(--on-dark-soft); margin-top: 0.2rem; }

.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.case {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.7rem 1.6rem; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.case:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; }
.case-tag {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--terra); background: rgba(180, 85, 45, 0.1); border-radius: 999px; padding: 0.3rem 0.75rem;
}
.case-time { font-size: 0.78rem; color: var(--ink-soft); }
.case-big { display: block; font-family: var(--font-display); font-size: 2.3rem; font-weight: 700; line-height: 1; }
.case-big-label { font-size: 0.8rem; color: var(--ink-soft); }
.case ul { list-style: none; margin-top: 1.2rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.case ul li { font-size: 0.88rem; font-weight: 500; padding: 0.24rem 0 0.24rem 1.25rem; position: relative; }
.case ul li::before { content: "▸"; position: absolute; left: 0; color: var(--terra); font-size: 0.8rem; }

/* ---------- process ---------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; counter-reset: step; }
.steps li {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; position: relative; counter-increment: step;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; top: 1.4rem; right: 1.5rem;
  font-family: var(--font-display); font-size: 1.9rem; font-weight: 700; color: var(--terra-soft);
}
.step-when { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--terra); }
.steps h3 { font-size: 1.3rem; margin: 0.6rem 0 0.6rem; }
.steps p { font-size: 0.9rem; color: var(--ink-soft); }

/* ---------- testimonials ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.quote-card {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem 1.6rem; display: flex; flex-direction: column; justify-content: space-between; gap: 1.4rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.quote-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.quote-card blockquote { font-family: var(--font-display); font-style: italic; font-size: 1.08rem; line-height: 1.5; color: var(--ink); }
.quote-card figcaption { display: flex; align-items: center; gap: 0.8rem; font-size: 0.85rem; color: var(--ink-soft); }
.quote-card figcaption strong { color: var(--ink); }
.quote-avatar {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background: var(--terra-soft); color: var(--terra-deep);
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem;
}

/* ---------- FAQ ---------- */
.faq-wrap { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 3rem; align-items: start; }
.faq-wrap .section-head { margin-bottom: 0; }
.faq-list { display: grid; gap: 0.8rem; }
.faq-list details {
  background: var(--cream); border: 1px solid var(--line); border-radius: 14px;
  padding: 0 1.4rem; overflow: hidden; transition: border-color 0.2s ease;
}
.faq-list details[open] { border-color: var(--terra); }
.faq-list summary {
  cursor: pointer; list-style: none; font-weight: 600; font-size: 1rem;
  padding: 1.1rem 0; position: relative; padding-right: 2rem;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 0.2rem; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-size: 1.4rem; color: var(--terra); transition: transform 0.2s ease;
}
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-list details p { color: var(--ink-soft); font-size: 0.95rem; padding: 0 0 1.2rem; }

/* ---------- trust ---------- */
.trust-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3.5rem; align-items: center; }
.trust-list { list-style: none; display: grid; gap: 1rem; }
.trust-list li {
  background: var(--cream); border: 1px solid var(--line); border-left: 4px solid var(--terra);
  border-radius: 12px; padding: 1.1rem 1.4rem; font-size: 0.95rem; color: var(--ink-soft);
}
.trust-list strong { color: var(--ink); }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 3.5rem; align-items: start; }
.about-body { color: var(--on-dark-soft); margin-top: 1.2rem; max-width: 36rem; }
.founder-quote { margin-top: 2.2rem; border-left: 3px solid var(--terra); padding-left: 1.4rem; }
.founder-quote blockquote { font-family: var(--font-display); font-style: italic; font-size: 1.25rem; line-height: 1.45; }
.founder-quote figcaption { display: flex; align-items: center; gap: 0.9rem; margin-top: 1.2rem; font-size: 0.9rem; color: var(--on-dark-soft); }
.founder-quote figcaption strong { color: var(--on-dark); }
.founder-avatar {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%;
  background: var(--terra); color: var(--cream); font-family: var(--font-display); font-weight: 700;
}
.company-card {
  background: var(--dark-2); border: 1px solid rgba(244, 235, 224, 0.12); border-radius: var(--radius);
  padding: 2rem 1.8rem; position: sticky; top: 6rem;
}
.company-card h3 { font-size: 1.25rem; margin-bottom: 1.4rem; color: var(--on-dark); }
.company-card dl { display: grid; gap: 0.9rem; }
.company-card dt { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #E08B5F; }
.company-card dd { font-size: 0.95rem; color: var(--on-dark-soft); margin-bottom: 0.3rem; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3.5rem; align-items: start; }
.contact-list { list-style: none; margin-top: 2rem; display: grid; gap: 1.1rem; }
.contact-list li { display: flex; flex-direction: column; font-size: 0.98rem; }
.contact-list span { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--terra); margin-bottom: 0.15rem; }
.contact-list a { color: var(--ink); font-weight: 600; text-decoration: none; }
.contact-list a:hover { color: var(--terra); }
.contact-form {
  background: var(--cream); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 2rem 1.8rem; display: grid; gap: 1.1rem;
}
.contact-form label { display: grid; gap: 0.4rem; font-size: 0.82rem; font-weight: 600; color: var(--ink-soft); }
.contact-form input, .contact-form textarea {
  font-family: var(--font-body); font-size: 0.95rem; color: var(--ink);
  background: var(--ivory); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.75rem 0.9rem; outline: none; transition: border-color 0.15s, box-shadow 0.15s;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--terra); box-shadow: 0 0 0 3px rgba(180, 85, 45, 0.15); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form-note { font-size: 0.8rem; color: var(--ink-soft); text-align: center; }

/* ---------- footer ---------- */
.footer { background: var(--dark); color: var(--on-dark); padding: 3.5rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.8rem; }
.brand-footer .brand-word { color: var(--on-dark); }
.footer-tag { margin-top: 1rem; font-size: 0.9rem; color: var(--on-dark-soft); }
.footer-details { margin-top: 1rem; font-size: 0.82rem; line-height: 1.7; color: var(--on-dark-soft); }
.footer-details strong { color: var(--on-dark); letter-spacing: 0.04em; }
.footer-col h4 { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #E08B5F; margin-bottom: 1rem; }
.footer-col a { display: block; color: var(--on-dark-soft); text-decoration: none; font-size: 0.9rem; padding: 0.25rem 0; }
.footer-col a:hover { color: var(--on-dark); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem;
  border-top: 1px solid rgba(244, 235, 224, 0.12); padding: 1.4rem 0 1.6rem;
  font-size: 0.8rem; color: var(--on-dark-soft);
}

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
.delay-1 { transition-delay: 0.12s; }
.delay-2 { transition-delay: 0.24s; }
.delay-3 { transition-delay: 0.36s; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .cards-4, .ai-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .cases, .quotes { grid-template-columns: repeat(2, 1fr); }
  .faq-wrap { grid-template-columns: 1fr; gap: 2rem; }
  .hero-grid, .about-grid, .contact-grid, .trust-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .company-card { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .results-band { grid-template-columns: repeat(2, 1fr); gap: 1.8rem; }
}
@media (max-width: 640px) {
  .cards-4, .ai-grid, .steps, .cases, .quotes, .form-row { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--cream); border-bottom: 1px solid var(--line);
    flex-direction: column; padding: 1.2rem 4%; gap: 1rem;
  }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
  .brand-sub { display: none; }
  .hero { padding-top: 3.5rem; }
  .section { padding: 4rem 0; }
}