/* ==========================================================================
   Sign My Card — Design Tokens
   ========================================================================== */

:root, [data-theme="light"] {
  /* Brand colors (from SMC Brand Guide) */
  --color-bg: #F7F6F2;
  --color-surface: #FFFFFF;
  --color-surface-2: #FBFAF7;
  --color-surface-offset: #EFEBE3;
  --color-border: #E2DED4;
  --color-divider: #E9E5DB;

  --color-text: #28251D;
  --color-text-muted: #7A7974;
  --color-text-faint: #A6A49C;
  --color-text-inverse: #F7F6F2;

  --color-primary: #0C4E54;        /* Deep Teal */
  --color-primary-bright: #01696F; /* Bright Teal — links/hover */
  --color-primary-hover: #093A3F;
  --color-primary-highlight: #DCE7E6;

  --color-gold: #D19900;           /* Warm Gold — contribution/celebration accent */
  --color-gold-hover: #B07F00;
  --color-gold-highlight: #F3E6C4;

  --radius-sm: 0.5rem;
  --radius-md: 0.875rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 3px rgba(12, 78, 84, 0.08);
  --shadow-md: 0 8px 24px rgba(12, 78, 84, 0.10);
  --shadow-lg: 0 20px 48px rgba(12, 78, 84, 0.14);

  --content-narrow: 640px;
  --content-default: 1000px;
  --content-wide: 1200px;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, 'Helvetica Neue', sans-serif;
}

/* Type scale (fluid, clamp-based) */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.02rem + 0.5vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.1vw, 2.1rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.6vw, 3.4rem);
  --text-3xl: clamp(2.5rem, 1.2rem + 4vw, 4.6rem);
  --text-hero: clamp(2.75rem, 1rem + 6vw, 6.25rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ==========================================================================
   Base
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 { text-wrap: balance; line-height: 1.12; font-family: var(--font-display); color: var(--color-primary); }
p, li { text-wrap: pretty; }

::selection { background: rgba(12, 78, 84, 0.18); color: var(--color-text); }

:focus-visible {
  outline: 2px solid var(--color-primary-bright);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }

a {
  color: var(--color-primary-bright);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-primary); }

a, button, [role="button"], input, textarea {
  transition: color var(--transition-interactive), background var(--transition-interactive),
    border-color var(--transition-interactive), box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--color-primary); color: #fff; padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

.wrap {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-12));
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-primary); background: var(--color-primary-highlight); color: var(--color-primary); }

.btn-small { font-size: var(--text-sm); padding: 0.6rem 1.25rem; }
.btn-large { font-size: var(--text-base); padding: 0.95rem 1.9rem; }
.btn-full { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 246, 242, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
}

.brand-mark { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand-logo { height: clamp(32px, 5vw, 44px); width: auto; }

.site-nav {
  display: flex;
  gap: clamp(var(--space-3), 2.2vw, var(--space-8));
  flex: 1;
  justify-content: center;
  min-width: 0;
}
.site-nav a {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a:hover { color: var(--color-primary-bright); }

@media (max-width: 880px) {
  .site-nav { display: none; }
  .header-inner { justify-content: space-between; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding-block: clamp(var(--space-20), 12vw, var(--space-32)) clamp(var(--space-16), 8vw, var(--space-24));
  overflow: hidden;
  isolation: isolate;
}

.hero-signature-motif {
  position: absolute;
  right: -8%;
  top: 8%;
  width: min(60vw, 640px);
  color: var(--color-gold);
  opacity: 0.22;
  z-index: -1;
  pointer-events: none;
}
.sig-stroke { stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw-signature 2.4s ease-out 0.3s forwards; }

@keyframes draw-signature {
  to { stroke-dashoffset: 0; }
}

.hero-inner {
  max-width: 780px;
}

.eyebrow, .section-eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-bright);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: var(--text-3xl);
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.accent-underline {
  position: relative;
  display: inline;
}
.accent-underline::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.06em;
  height: 0.16em;
  background: var(--color-gold);
  opacity: 0.45;
  z-index: -1;
  border-radius: var(--radius-full);
}

.hero-tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-gold);
  margin-bottom: var(--space-5);
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-8);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hero-microcopy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ==========================================================================
   Sections — shared
   ========================================================================== */

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}
.section-alt { background: var(--color-surface-offset); }

.section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  max-width: 24ch;
}

.section-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

/* ==========================================================================
   Problem: scenario cards
   ========================================================================== */

.card-grid { display: grid; gap: var(--space-6); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 900px) {
  .card-grid-3 { grid-template-columns: 1fr; }
}

.scenario-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.scenario-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.scenario-icon svg { width: 28px; height: 28px; }

.scenario-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.scenario-card p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* ==========================================================================
   How it works: steps
   ========================================================================== */

.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  counter-reset: step;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  align-items: start;
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-divider);
}
.step:last-child { border-bottom: none; padding-bottom: 0; }

.step-number {
  width: 48px; height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  display: flex; align-items: center; justify-content: center;
}

.step-gold .step-number { background: var(--color-gold); }

.step-body h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.step-body p {
  color: var(--color-text-muted);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.pill {
  background: var(--color-gold-highlight);
  color: #6B4E00;
  border: 1px solid rgba(209, 153, 0, 0.35);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
}

@media (max-width: 560px) {
  .step { grid-template-columns: auto 1fr; }
  .step-number { width: 40px; height: 40px; font-size: var(--text-base); }
}

/* ==========================================================================
   Who it's for
   ========================================================================== */

.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}
@media (max-width: 800px) { .audience-grid { grid-template-columns: 1fr; } }

.audience-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-8), 4vw, var(--space-10));
  box-shadow: var(--shadow-sm);
}

.audience-card-gold {
  border-color: rgba(209, 153, 0, 0.35);
  background: linear-gradient(180deg, #FFFDF7 0%, var(--color-surface) 60%);
}

.audience-kicker {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.audience-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-6);
}

.check-list { display: flex; flex-direction: column; gap: var(--space-4); }
.check-list li {
  position: relative;
  padding-left: var(--space-8);
  color: var(--color-text);
  font-size: var(--text-base);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.35em;
  width: 20px; height: 20px;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M4 10l4 4 8-8' stroke='%230C4E54' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.audience-card-gold .check-list li::before {
  background-color: var(--color-gold-highlight);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M4 10l4 4 8-8' stroke='%23806000' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

/* ==========================================================================
   Templates
   ========================================================================== */

.template-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}
.template-chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.65rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
}
.template-chip-custom {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  font-weight: 600;
}

.custom-callout {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 4vw, var(--space-8));
  box-shadow: var(--shadow-sm);
  max-width: 640px;
}
.custom-callout-icon {
  width: 56px; height: 56px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-gold-highlight);
  color: #6B4E00;
}
.custom-callout-icon svg { width: 28px; height: 28px; }
.custom-callout h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.custom-callout p { color: var(--color-text-muted); }

@media (max-width: 480px) {
  .custom-callout { flex-direction: column; }
}

/* ==========================================================================
   Trust section
   ========================================================================== */

.trust-section {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.section-eyebrow-inverse { color: var(--color-gold); }
.section-title-inverse { color: #fff; }

.trust-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: start;
}
@media (max-width: 820px) { .trust-grid { grid-template-columns: 1fr; } }

.trust-body {
  font-size: var(--text-lg);
  color: rgba(247, 246, 242, 0.86);
  max-width: 56ch;
}

.trust-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.trust-point {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  font-size: var(--text-base);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.trust-point-mark {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-gold);
  color: var(--color-primary);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-sm);
}

/* ==========================================================================
   Stats section
   ========================================================================== */

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 760px) { .stats-grid { grid-template-columns: 1fr; } }

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-8), 4vw, var(--space-10));
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--text-2xl);
  color: var(--color-gold);
  margin-bottom: var(--space-3);
  line-height: 1;
}

.stat-label {
  color: var(--color-text);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}

.stat-source {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.stats-footnote {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 74ch;
}

/* ==========================================================================
   Final CTA
   ========================================================================== */

.final-cta {
  text-align: center;
}
.final-cta-inner {
  max-width: 640px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.final-cta .section-title,
.final-cta .section-lede {
  max-width: none;
}
.final-cta .section-lede { margin-bottom: var(--space-8); }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-surface-offset);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-8);
}
.footer-logo { height: 34px; width: auto; margin-bottom: var(--space-2); }
.footer-status {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-gold-hover);
  background: var(--color-gold-highlight);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}
.footer-meta { text-align: right; max-width: 420px; }
.footer-meta p { font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: var(--space-2); }
.footer-fine { color: var(--color-text-faint); }

@media (max-width: 600px) {
  .footer-inner { flex-direction: column; }
  .footer-meta { text-align: left; }
}

/* ==========================================================================
   Waitlist modal
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(40, 37, 29, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}
.modal-overlay[hidden] { display: none; }

.modal {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-8), 5vw, var(--space-10));
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--color-surface-offset); color: var(--color-text); }

.modal-title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}
.modal-copy {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

[data-waitlist-form] {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
[data-waitlist-form] input {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-base);
}
[data-waitlist-form] input:focus-visible { border-color: var(--color-primary-bright); }

.modal-fineprint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
}

.modal-success { text-align: center; }
.modal-success-icon {
  width: 64px; height: 64px;
  margin-inline: auto;
  margin-bottom: var(--space-5);
  color: var(--color-primary-bright);
}
.modal-success .btn { margin-top: var(--space-2); }

/* ==========================================================================
   Responsive helpers
   ========================================================================== */

@media (max-width: 480px) {
  .hero-cta-row { flex-direction: column; align-items: stretch; }
  .hero-cta-row .btn { width: 100%; }
}