/* =========================================================
   DataRoses — landing page
   Single stylesheet, mobile-first.
   ========================================================= */

:root {
  /* Brand */
  --brand: #A8246B;
  --brand-deep: #7E1A50;
  --brand-ink: #2A0E1E;
  --accent-bg: #F7EEF4;

  /* Surfaces */
  --bg: #FFFFFF;
  --bg-soft: #FAFAFB;
  --bg-band: #F4F5F8;
  --bg-dark: #14101A;

  /* Text */
  --ink: #14101A;
  --ink-2: #4A4655;
  --ink-3: #6E6A78;
  --ink-onbrand: #FFFFFF;
  --line: #E7E5EC;

  /* Type */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --container: 1200px;
  --container-narrow: 760px;
  --radius: 14px;
  --radius-sm: 8px;

  /* Motion */
  --easing: cubic-bezier(.2,.7,.2,1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Reset / base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

button { font: inherit; }

h1, h2, h3 {
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-weight: 700;
}
h1 { font-size: clamp(2.1rem, 4.8vw, 3.6rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p { margin: 0; }

/* ---------- Skip link ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: 12px 16px;
  z-index: 100;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; outline: none; }

/* ---------- Container ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: var(--container-narrow); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.97rem;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1.5px solid transparent;
  text-decoration: none;
  transition: transform .15s var(--easing), background-color .15s var(--easing), color .15s var(--easing), border-color .15s var(--easing), box-shadow .15s var(--easing);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 0;
  box-shadow: 0 0 0 5px var(--brand);
}

.btn-primary {
  background: var(--brand);
  color: var(--ink-onbrand);
  border-color: var(--brand);
}
.btn-primary:hover { background: var(--brand-deep); border-color: var(--brand-deep); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--bg-soft); border-color: var(--ink-3); color: var(--ink); }

.btn-large { min-height: 56px; padding: 16px 28px; font-size: 1.05rem; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--brand);
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
  margin-right: auto;
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 32px; height: 32px; color: var(--brand); flex-shrink: 0; }
.brand-name { font-size: 1.1rem; color: var(--brand-deep); }

.site-nav {
  display: none;
  align-items: center;
  gap: 28px;
}
.site-nav a {
  color: var(--ink-2);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 0;
}
.site-nav a:hover { color: var(--brand); text-decoration: none; }

.header-cta { padding: 10px 18px; min-height: 42px; font-size: 0.92rem; }

@media (min-width: 820px) {
  .site-nav { display: inline-flex; }
}

/* ---------- Hero ---------- */

.hero {
  padding: clamp(48px, 9vw, 96px) 0 clamp(40px, 7vw, 72px);
  background:
    radial-gradient(1200px 480px at 80% -10%, rgba(168,36,107,.10), transparent 60%),
    radial-gradient(900px 360px at -10% 30%, rgba(168,36,107,.06), transparent 60%),
    var(--bg);
}

.hero-inner { max-width: 880px; }

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0 0 18px;
  padding: 6px 12px;
  background: var(--accent-bg);
  border-radius: 999px;
}

.lede {
  margin-top: 22px;
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: var(--ink-2);
  max-width: 60ch;
  line-height: 1.55;
}

.hero-ctas {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Proof bar ---------- */

.proof {
  padding: 28px 0 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.proof-caption {
  text-align: center;
  font-size: 0.92rem;
  color: var(--ink-3);
  max-width: 720px;
  margin: 0 auto 18px;
}

.proof-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px 14px;
}

.badge {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-2);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: -0.005em;
}
.badge-strong {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
  font-weight: 600;
}

/* ---------- Sections ---------- */

.section { padding: clamp(64px, 9vw, 112px) 0; }
.section-alt { background: var(--bg-band); }

.section-head {
  max-width: 720px;
  margin: 0 auto clamp(36px, 5vw, 56px);
  text-align: center;
}
.section-head .eyebrow { margin-bottom: 14px; }
.section-lede {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 1.05rem;
}

/* ---------- Offer cards ---------- */

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); align-items: stretch; }
}
@media (min-width: 880px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}
/* 4-card variant for the offers grid */
@media (min-width: 1080px) {
  .cards-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Small inline brand link used in card bodies */
.inline-link { color: var(--brand); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
.inline-link:hover { color: var(--brand-deep); }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform .2s var(--easing), border-color .2s var(--easing), box-shadow .2s var(--easing);
}
/* Slightly tighter horizontal padding when 4 cards share a row */
@media (min-width: 1080px) {
  .cards-4 .card { padding: 28px 22px; }
}
.card:hover {
  transform: translateY(-2px);
  border-color: #D9D5E0;
  box-shadow: 0 12px 32px -16px rgba(20,16,26,.18);
}

.card-featured {
  background: linear-gradient(180deg, #fff 0%, #fff 100%);
  border-color: var(--brand);
  box-shadow: 0 14px 40px -20px rgba(168,36,107,.45);
}
.card-featured:hover { border-color: var(--brand); }

.card-flag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #fff;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.card-head { margin-bottom: 14px; }
.card-kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 6px;
}
.card h3 { margin-bottom: 8px; font-size: 1.3rem; }
.card-price {
  font-weight: 600;
  color: var(--ink-2);
  font-size: 0.95rem;
}

.card-body {
  color: var(--ink-2);
  font-size: 0.96rem;
  margin-bottom: 18px;
  line-height: 1.55;
}

.card-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card-list li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-2);
  font-size: 0.92rem;
}
.card-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 12px; height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

.card-link {
  margin-top: auto;
  color: var(--brand);
  font-weight: 600;
  font-size: 0.95rem;
}
.card-link:hover { color: var(--brand-deep); text-decoration: none; }

/* ---------- Approach (steps) ---------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  counter-reset: step;
}
@media (min-width: 880px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}

.steps li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.step-num {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand);
  margin-bottom: 14px;
}
.steps h3 { margin-bottom: 10px; font-size: 1.2rem; }
.steps p { color: var(--ink-2); font-size: 0.96rem; }

/* ---------- Case studies grid ---------- */

.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: stretch;
}
@media (min-width: 720px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}

.case-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s var(--easing), border-color .2s var(--easing), box-shadow .2s var(--easing);
}
.case-card:hover {
  transform: translateY(-2px);
  border-color: #D9D5E0;
  box-shadow: 0 14px 40px -22px rgba(20,16,26,.20);
}

/* CertifHub gets a slightly brighter ring + subtle brand glow */
.case-card-feature {
  border-color: var(--brand);
  box-shadow: 0 14px 36px -22px rgba(168,36,107,.45);
}
.case-card-feature:hover { border-color: var(--brand); }

/* Preview area */
.case-preview {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-band);
  overflow: hidden;
}
.case-preview img,
.case-preview svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Blur confidential previews — frosted-glass feel, not "blocked out" */
.case-preview.is-confidential::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at 50% 30%, rgba(255,255,255,.10), rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(168,36,107,.0) 0%, rgba(168,36,107,.10) 100%);
  pointer-events: none;
}
.case-preview.is-confidential img,
.case-preview.is-confidential svg {
  filter: blur(16px) saturate(1.15) brightness(1.04);
  transform: scale(1.06);
}

/* Badge overlay */
.case-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(20,16,26,.88);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 7px 11px;
  border-radius: 6px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 14px -4px rgba(0,0,0,.35);
}
.case-badge-brand {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(168,36,107,.45);
}

/* Body */
.case-card-body {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.case-card-body h3 {
  font-size: 1.15rem;
  line-height: 1.3;
  margin: 0;
}
.case-card-body > p {
  color: var(--ink-2);
  font-size: 0.96rem;
  line-height: 1.55;
  margin: 0;
}

.case-domain {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0;
}

/* Compact stat tiles inside cards */
.case-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
  margin: 4px 0 0;
}
.case-stats div {
  padding: 10px 12px;
  background: var(--bg-band);
  border-radius: var(--radius-sm);
}
.case-stats dt {
  color: var(--ink-3);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 2px;
  text-transform: uppercase;
}
.case-stats dd {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  font-size: 1rem;
}

.case-link {
  font-weight: 600;
  color: var(--brand);
  font-size: 0.95rem;
  margin-top: auto;
  padding-top: 6px;
}
.case-link:hover { color: var(--brand-deep); text-decoration: none; }

/* ---------- Pillars ---------- */

.pillars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 880px) {
  .pillars { grid-template-columns: repeat(3, 1fr); }
}

.pillars li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.pillar-icon {
  width: 28px;
  height: 28px;
  color: var(--brand);
  margin-bottom: 14px;
}
.pillars h3 { margin-bottom: 8px; }
.pillars p { color: var(--ink-2); font-size: 0.96rem; }

/* ---------- FAQ ---------- */

.faq {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s var(--easing);
}
.faq details[open] { border-color: var(--brand); }

.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-weight: 600;
  color: var(--ink);
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-bg);
  color: var(--brand);
  font-size: 1.2rem;
  font-weight: 600;
  transition: transform .2s var(--easing);
}
.faq details[open] summary::after { content: "−"; transform: rotate(180deg); }

.faq details p {
  padding: 0 24px 22px;
  color: var(--ink-2);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* ---------- Final CTA ---------- */

.cta-final {
  background: var(--bg-dark);
  color: #fff;
  padding: clamp(64px, 9vw, 112px) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-final::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(168,36,107,.35), transparent 70%);
  pointer-events: none;
}
.cta-final .container { position: relative; }
.cta-final h2 {
  color: #fff;
  max-width: 22ch;
  margin: 0 auto 18px;
}
.cta-final p {
  max-width: 56ch;
  margin: 0 auto;
  color: rgba(255,255,255,.78);
  font-size: 1.05rem;
}
.cta-final .btn { margin-top: 30px; }
.cta-fineprint {
  margin-top: 18px !important;
  font-size: 0.85rem !important;
  color: rgba(255,255,255,.55) !important;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-band);
  border-top: 1px solid var(--line);
  padding: 40px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}
@media (min-width: 760px) {
  .footer-inner { grid-template-columns: 1fr auto; align-items: center; }
}

.footer-brand .brand-name { color: var(--brand-deep); font-weight: 800; font-size: 1.05rem; }
.footer-brand p { margin-top: 4px; color: var(--ink-3); font-size: 0.9rem; }

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}
.footer-meta a {
  color: var(--ink-2);
  font-size: 0.92rem;
  font-weight: 500;
}
.footer-meta a:hover { color: var(--brand); text-decoration: none; }

.footer-copy {
  grid-column: 1 / -1;
  padding-top: 22px;
  margin-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 0.85rem;
}

/* ---------- Rival / confidentiality band ---------- */

.rival-band {
  position: relative;
  background: var(--bg-dark);
  color: #fff;
  padding: clamp(40px, 6vw, 72px) 0;
  overflow: hidden;
  text-align: center;
}
.rival-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(540px 260px at 50% 50%, rgba(168,36,107,.28), transparent 70%);
  pointer-events: none;
}
.rival-band .container { position: relative; }

.rival-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
  margin: 0 0 14px;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
}

.rival-line {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: #fff;
  max-width: 32ch;
  line-height: 1.3;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Booking form ---------- */

.cta-head { text-align: center; max-width: 720px; margin: 0 auto 36px; }
.cta-head h2 { color: #fff; margin-bottom: 14px; }
.cta-head p { color: rgba(255,255,255,.78); font-size: 1.05rem; }

.booking-form {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.4);
  text-align: left;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px 20px;
}
@media (min-width: 720px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-full { grid-column: 1 / -1; }

.field label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.field label span[aria-hidden] { color: var(--brand); margin-left: 2px; }

.field input,
.field select,
.field textarea {
  font: inherit;
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  min-height: 48px;
  transition: border-color .15s var(--easing), box-shadow .15s var(--easing);
}
.field textarea { min-height: 96px; resize: vertical; line-height: 1.55; }
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ink-3) 50%),
    linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 22px,
    calc(100% - 13px) 22px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(168,36,107,.15);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--ink-3); }

.field-hint {
  font-size: 0.82rem;
  color: var(--ink-3);
  margin: 2px 0 0;
  line-height: 1.45;
}

.form-foot {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.form-foot .btn { min-width: 240px; }

.form-fineprint {
  font-size: 0.82rem;
  color: var(--ink-3);
}
.form-fineprint a { color: var(--ink-2); text-decoration: underline; }
.form-fineprint a:hover { color: var(--brand); }

/* ---------- Focus visibility ---------- */

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}
.btn:focus-visible { outline-offset: 2px; }