/* ========================================================================
   Sondaggio — Marketing site styles
   Aesthetic: precise · warm · clinical-confident
   Inspirations: Linear, Plausible, Glossier
   ======================================================================== */

/* --------- 1. Tokens --------- */
:root {
  /* Color */
  --color-primary: #1E3A5F;
  --color-primary-700: #16304F;
  --color-primary-900: #0E2138;
  --color-secondary: #F5F2EE;
  --color-accent: #7B9E8E;
  --color-accent-700: #5E8576;
  --color-neutral-dark: #2C2C2C;
  --color-neutral-mid: #6B7280;
  --color-neutral-light: #E8E4DF;
  --color-success: #4A7C6A;
  --color-warning: #C4922A;
  --color-error: #B85450;

  --color-bg: var(--color-secondary);
  --color-surface: #FFFFFF;
  --color-text: var(--color-neutral-dark);
  --color-text-muted: var(--color-neutral-mid);
  --color-border: var(--color-neutral-light);

  /* Type */
  --font-serif: "DM Serif Display", Georgia, serif;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, monospace;

  /* Scale (mobile-first) */
  --fs-xs: 0.8125rem;   /* 13px */
  --fs-sm: 0.9375rem;   /* 15px */
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.75rem;
  --fs-2xl: 2.25rem;
  --fs-3xl: 2.75rem;
  --fs-4xl: 3.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --space-10: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(30, 58, 95, 0.04), 0 1px 3px rgba(30, 58, 95, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(30, 58, 95, 0.06), 0 10px 25px -10px rgba(30, 58, 95, 0.12);
  --shadow-lg: 0 10px 30px -10px rgba(30, 58, 95, 0.18), 0 20px 60px -30px rgba(30, 58, 95, 0.25);

  /* Layout */
  --container: 1180px;
  --container-narrow: 880px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-base: 320ms;
  --dur-slow: 480ms;
}

@media (min-width: 768px) {
  :root {
    --fs-xl: 2rem;
    --fs-2xl: 2.75rem;
    --fs-3xl: 3.5rem;
    --fs-4xl: 4.5rem;
  }
}

/* --------- 2. Reset / Base --------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--color-accent-700); }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--color-primary);
}

h1 { font-size: var(--fs-4xl); letter-spacing: -0.035em; }
h2 { font-size: var(--fs-3xl); letter-spacing: -0.03em; }
h3 { font-size: var(--fs-xl); letter-spacing: -0.02em; }
h4 { font-size: var(--fs-lg); }

p { color: var(--color-text); }

::selection {
  background: var(--color-primary);
  color: var(--color-secondary);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------- 3. Layout helpers --------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container-narrow {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-8); }
.section-lg { padding-block: var(--space-9); }

@media (min-width: 768px) {
  .container, .container-narrow { padding-inline: var(--space-6); }
  .section { padding-block: var(--space-9); }
  .section-lg { padding-block: var(--space-10); }
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-700);
  margin-bottom: var(--space-4);
  display: inline-block;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-8);
}
.section-head p {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

/* --------- 4. Buttons --------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: var(--radius-md);
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-secondary);
}
.btn-primary:hover {
  background: var(--color-primary-700);
  color: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--color-accent-700);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  background: rgba(30, 58, 95, 0.04);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover { color: var(--color-accent-700); }

.btn-arrow::after {
  content: "→";
  transition: transform var(--dur-fast) var(--ease-out);
}
.btn-arrow:hover::after { transform: translateX(3px); }

.btn-lg { padding: 1.05rem 1.875rem; font-size: var(--fs-base); }

/* --------- 5. Navigation --------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 242, 238, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out);
}
.nav.is-scrolled { border-bottom-color: var(--color-border); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 22px;
  height: 22px;
  display: inline-grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 2px;
}
.brand-mark span {
  background: var(--color-primary);
  border-radius: 1.5px;
  opacity: 0.25;
}
.brand-mark span.on { background: var(--color-accent); opacity: 1; }

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
}
.nav-links a {
  color: var(--color-neutral-dark);
  font-size: var(--fs-sm);
  font-weight: 500;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-cta { display: none; }

@media (min-width: 880px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }
}

.nav-toggle {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}
.nav-toggle svg { width: 22px; height: 22px; }

.mobile-menu {
  display: none;
  border-top: 1px solid var(--color-border);
  padding: var(--space-5);
  background: var(--color-bg);
}
.mobile-menu.open { display: block; }
.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.mobile-menu a {
  display: block;
  padding: var(--space-3);
  font-size: var(--fs-md);
  color: var(--color-neutral-dark);
  border-radius: var(--radius-sm);
}
.mobile-menu a:hover { background: rgba(30,58,95,0.04); color: var(--color-primary); }
.mobile-menu .btn { width: 100%; margin-top: var(--space-3); }

/* --------- 6. Hero --------- */
.hero {
  position: relative;
  padding-block: var(--space-8) var(--space-9);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 0%, rgba(123, 158, 142, 0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 0% 30%, rgba(30, 58, 95, 0.06), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  margin-bottom: var(--space-5);
}
.hero-copy .lede {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-6);
  line-height: 1.6;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero-meta {
  margin-top: var(--space-5);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.hero-meta .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  display: inline-block;
}

@media (min-width: 960px) {
  .hero-inner {
    grid-template-columns: 1.05fr 1fr;
    gap: var(--space-9);
  }
}

/* --------- 7. Phone mockup --------- */
.phone-stage {
  display: flex;
  justify-content: center;
  perspective: 1200px;
}
.phone {
  width: 290px;
  background: #0E2138;
  border-radius: 38px;
  padding: 12px;
  box-shadow:
    0 30px 60px -20px rgba(14, 33, 56, 0.45),
    0 10px 25px -10px rgba(14, 33, 56, 0.3),
    inset 0 0 0 1.5px rgba(255,255,255,0.06);
  position: relative;
  transform: rotateY(-6deg) rotateX(2deg);
}
.phone::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 96px;
  height: 22px;
  background: #0E2138;
  border-radius: 0 0 14px 14px;
  z-index: 3;
}
.phone-screen {
  background: linear-gradient(180deg, #FAFAF7 0%, #F5F2EE 100%);
  border-radius: 28px;
  overflow: hidden;
  height: 540px;
  display: flex;
  flex-direction: column;
}
.phone-statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 22px 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-neutral-dark);
  font-family: var(--font-sans);
}
.phone-statusbar .icons { display: flex; gap: 4px; align-items: center; }
.phone-statusbar .icons span {
  width: 16px; height: 10px;
  background: var(--color-neutral-dark);
  display: inline-block;
  border-radius: 2px;
  opacity: 0.7;
}
.phone-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 16px 12px;
  border-bottom: 1px solid var(--color-border);
}
.phone-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--font-serif);
  font-size: 18px;
  margin-bottom: 6px;
}
.phone-header-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-neutral-dark);
}
.phone-header-sub {
  font-size: 11px;
  color: var(--color-text-muted);
}
.phone-thread {
  flex: 1;
  padding: 16px 14px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}
.bubble {
  max-width: 78%;
  padding: 9px 13px;
  border-radius: 18px;
  font-size: 13.5px;
  line-height: 1.45;
  word-wrap: break-word;
}
.bubble-in {
  background: #E8E4DF;
  color: var(--color-neutral-dark);
  align-self: flex-start;
  border-bottom-left-radius: 5px;
}
.bubble-out {
  background: linear-gradient(135deg, #2E78F1 0%, #1C5BD2 100%);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 5px;
}
.bubble code {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  font-weight: 600;
  font-size: 13px;
  padding: 1px 4px;
  background: rgba(255,255,255,0.18);
  border-radius: 3px;
}
.bubble .link {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.timestamp {
  text-align: center;
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin: 4px 0;
}

.phone-input {
  padding: 8px 12px 14px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.phone-input-field {
  flex: 1;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* --------- 8. Step blocks --------- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
}
@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); gap: var(--space-7); }
}
.step {
  position: relative;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.step-num {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-secondary);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.step h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}
.step p { color: var(--color-text-muted); font-size: var(--fs-sm); }
.step-icon {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 28px;
  height: 28px;
  color: var(--color-accent);
  opacity: 0.6;
}

/* --------- 9. Problem / Solution --------- */
.ps-section {
  background: var(--color-primary);
  color: var(--color-secondary);
}
.ps-section h2 { color: var(--color-secondary); }
.ps-section .eyebrow { color: var(--color-accent); }
.ps-section .section-head p { color: rgba(245, 242, 238, 0.75); }

.ps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
@media (min-width: 880px) { .ps-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); } }

.ps-col h3 {
  color: var(--color-secondary);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(245, 242, 238, 0.15);
}
.ps-item {
  padding: var(--space-5) 0;
  border-bottom: 1px solid rgba(245, 242, 238, 0.08);
}
.ps-item:last-child { border-bottom: none; }
.ps-item h4 {
  color: var(--color-secondary);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-md);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}
.ps-item p {
  color: rgba(245, 242, 238, 0.72);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.ps-col--solution .ps-item h4 { color: var(--color-accent); }

/* --------- 10. Features grid --------- */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
@media (min-width: 700px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .features { grid-template-columns: repeat(3, 1fr); } }

.feature {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(123, 158, 142, 0.45);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(123, 158, 142, 0.14);
  color: var(--color-accent-700);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-5);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-md);
  letter-spacing: -0.01em;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.feature .feature-headline {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
  line-height: 1.2;
}
.feature p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.feature ul {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.feature ul li {
  font-size: var(--fs-sm);
  color: var(--color-text);
  padding-left: 1rem;
  position: relative;
}
.feature ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* --------- 11. Testimonials --------- */
.testimonials {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
@media (min-width: 880px) { .testimonials { grid-template-columns: repeat(3, 1fr); } }

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  position: relative;
}
.testimonial::before {
  content: "“";
  position: absolute;
  top: -4px;
  left: var(--space-5);
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.35;
}
.testimonial blockquote {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--color-neutral-dark);
  margin: var(--space-5) 0 var(--space-6);
  flex: 1;
}
.testimonial cite {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}
.testimonial .name { font-weight: 600; font-size: var(--fs-sm); color: var(--color-primary); }
.testimonial .role { font-size: var(--fs-xs); color: var(--color-text-muted); }

/* --------- 12. Pricing --------- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
@media (min-width: 880px) { .pricing-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1100px) { .pricing-grid.has-enterprise { grid-template-columns: repeat(4, 1fr); } }

.tier {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.tier:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.tier--featured {
  background: var(--color-primary);
  color: var(--color-secondary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}
.tier--featured h3, .tier--featured .tier-price { color: var(--color-secondary); }
.tier--featured .tier-tagline { color: rgba(245, 242, 238, 0.75); }
.tier--featured .tier-features li { color: rgba(245, 242, 238, 0.85); }
.tier--featured .tier-features li::before { color: var(--color-accent); }

.tier-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}
.tier h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-md);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent-700);
  margin-bottom: var(--space-3);
}
.tier--featured h3 { color: var(--color-accent); }
.tier-price {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--space-2);
  color: var(--color-primary);
}
.tier-price small {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0;
}
.tier--featured .tier-price small { color: rgba(245,242,238,0.65); }

.tier-tagline {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  min-height: 2.6em;
}
.tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.tier-features li {
  font-size: var(--fs-sm);
  padding-left: 1.65rem;
  position: relative;
  line-height: 1.5;
}
.tier-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.05rem;
  color: var(--color-success);
  font-weight: 600;
}
.tier .btn { width: 100%; }

/* --------- 13. FAQ --------- */
.faq {
  max-width: 760px;
  margin: var(--space-7) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-5) var(--space-6);
  font-weight: 500;
  font-size: var(--fs-md);
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  transition: background var(--dur-fast) var(--ease-out);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: rgba(30,58,95,0.025); }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-accent-700);
  transition: transform var(--dur-base) var(--ease-out);
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.65;
}

/* --------- 14. Footer --------- */
.footer {
  background: var(--color-primary-900);
  color: var(--color-secondary);
  padding-block: var(--space-8) var(--space-7);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .footer-inner { grid-template-columns: 2fr 1fr; align-items: start; }
}
.footer .brand { color: var(--color-secondary); }
.footer .brand-mark span { background: rgba(245,242,238,0.25); }
.footer .brand-mark span.on { background: var(--color-accent); }
.footer-tagline {
  margin-top: var(--space-4);
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  color: var(--color-secondary);
  letter-spacing: -0.01em;
  max-width: 420px;
  line-height: 1.3;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  list-style: none;
  padding: 0;
}
.footer-links a {
  color: rgba(245, 242, 238, 0.7);
  font-size: var(--fs-sm);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(245,242,238,0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(245,242,238,0.55);
}

/* --------- 15. CTA strips --------- */
.cta-strip {
  background: var(--color-primary);
  color: var(--color-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  text-align: center;
  margin-top: var(--space-7);
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(123,158,142,0.25), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(123,158,142,0.18), transparent 55%);
  pointer-events: none;
}
.cta-strip * { position: relative; z-index: 1; }
.cta-strip h2 {
  color: var(--color-secondary);
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-3);
}
.cta-strip p {
  color: rgba(245,242,238,0.78);
  max-width: 560px;
  margin: 0 auto var(--space-5);
}
.cta-strip .btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.cta-strip .btn-primary:hover { background: var(--color-accent-700); }

/* --------- 16. Page hero (sub pages) --------- */
.page-hero {
  padding-block: var(--space-9) var(--space-7);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  max-width: 760px;
  margin: 0 auto var(--space-4);
}
.page-hero p {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 580px;
  margin: 0 auto;
}

/* --------- 17. Comparison table --------- */
.compare-wrap {
  margin-top: var(--space-7);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: var(--fs-sm);
}
.compare th, .compare td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.compare th {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  background: rgba(30, 58, 95, 0.025);
}
.compare th.tier-col {
  text-align: center;
  color: var(--color-primary);
  font-size: var(--fs-sm);
  letter-spacing: -0.01em;
  text-transform: none;
  font-weight: 600;
}
.compare td.tick { text-align: center; color: var(--color-success); font-weight: 600; }
.compare td.dash { text-align: center; color: var(--color-neutral-mid); }
.compare tr:last-child td { border-bottom: none; }
.compare tr.row-group td {
  background: rgba(123,158,142,0.06);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
}

/* --------- 18. How-it-works specific --------- */
.flow-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-7);
  position: relative;
}
@media (min-width: 880px) {
  .flow-timeline::before {
    content: "";
    position: absolute;
    left: 32px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), rgba(123,158,142,0.15));
    border-radius: 2px;
  }
}
.flow-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
@media (min-width: 880px) {
  .flow-row { grid-template-columns: 80px 1fr 280px; gap: var(--space-6); background: transparent; border: 0; padding: 0; }
}
.flow-marker {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  display: grid;
  place-items: center;
  color: var(--color-primary);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--color-bg);
}
.flow-body h3 { font-size: var(--fs-xl); margin-bottom: var(--space-2); }
.flow-body p { color: var(--color-text-muted); margin-bottom: var(--space-3); }
.flow-body .meta {
  font-size: var(--fs-xs);
  color: var(--color-accent-700);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.flow-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}
.flow-visual .code-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.flow-visual .code-card .label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.flow-visual .code-card .code {
  font-family: var(--font-mono);
  font-size: 2rem;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  background: rgba(123,158,142,0.12);
  border: 1px dashed var(--color-accent);
  border-radius: var(--radius-md);
}
.flow-visual .mini-bubble {
  background: linear-gradient(135deg, #2E78F1 0%, #1C5BD2 100%);
  color: #fff;
  padding: 10px 14px;
  border-radius: 16px;
  border-bottom-right-radius: 4px;
  font-size: 13px;
  max-width: 220px;
  line-height: 1.4;
}
.flow-visual .mini-bubble code { color: #fff; font-family: var(--font-mono); }
.flow-visual .mini-link {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.integration-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-7);
}
@media (min-width: 768px) { .integration-grid { grid-template-columns: repeat(3, 1fr); } }
.integration {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.integration h3 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--fs-md);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.integration p { font-size: var(--fs-sm); color: var(--color-text-muted); }

/* --------- 19. Reveal animation --------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 80ms; }
.reveal[data-delay="2"] { transition-delay: 160ms; }
.reveal[data-delay="3"] { transition-delay: 240ms; }
.reveal[data-delay="4"] { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* --------- 20. Trust strip / pill --------- */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-7);
  justify-content: center;
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.trust-strip span { display: inline-flex; align-items: center; gap: var(--space-2); }
.trust-strip svg { width: 14px; height: 14px; color: var(--color-accent); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(123, 158, 142, 0.14);
  color: var(--color-accent-700);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.03em;
}
.tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); }