/* ═══════════════════════════════════════════════════
   Theo — Compliance & Support Portal
   Aesthetic: Warm editorial, frosted depth, precise craft
   ═══════════════════════════════════════════════════ */

:root {
  --color-ink: #111111;
  --color-surface: #FAFAF9;
  --color-white: #FFFFFF;
  --color-warm-50: #FEFDFB;
  --color-warm-100: #F7F6F3;
  --color-warm-200: #E8E6E1;
  --color-warm-300: #D4D1CA;
  --color-warm-400: #A8A49C;
  --color-warm-500: #78756E;
  --color-warm-700: #44423D;
  --color-warm-900: #1C1B19;
  --color-accent: #2563EB;
  --color-accent-soft: rgba(37, 99, 235, 0.08);
  --color-accent-hover: #1D4ED8;
  --color-accent-glow: rgba(37, 99, 235, 0.12);

  --font-heading: 'DM Sans', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.03);
  --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --radius: 12px;
  --radius-sm: 8px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  background: var(--color-surface);
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-warm-700);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Subtle texture ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px;
  pointer-events: none;
}

/* ── Page Layout ── */
.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ═══════════════════════════════════════════════════
   SITE HEADER — Frosted glass sticky nav
   ═══════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.82);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: box-shadow 0.3s ease;
}

.site-header:hover {
  box-shadow: 0 1px 12px rgba(0,0,0,0.04);
}

.site-header .header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.site-header .brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.375rem;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  transition: color 0.3s ease;
}

.site-header .brand:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.site-nav a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-warm-500);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: none;
  transition: color 0.25s ease, background 0.25s ease;
}

.site-nav a:hover {
  color: var(--color-ink);
  background: rgba(0,0,0,0.03);
}

.site-nav a.is-active {
  color: var(--color-accent);
  background: var(--color-accent-soft);
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════
   CONTENT AREA
   ═══════════════════════════════════════════════════ */
.content {
  flex: 1;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 3.5rem 2rem 5rem;
  animation: contentReveal 0.7s var(--ease-out-expo) both;
}

@keyframes contentReveal {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Page Title Block ── */
.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.page-subtitle {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-warm-500);
  margin-top: 0.625rem;
  font-weight: 400;
}

.accent-rule {
  display: block;
  width: 32px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), rgba(37, 99, 235, 0.3));
  border: none;
  border-radius: 2px;
  margin: 1.75rem 0 2.75rem;
}

/* ═══════════════════════════════════════════════════
   TYPOGRAPHY — Rich hierarchy
   ═══════════════════════════════════════════════════ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  line-height: 1.3;
}

h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1.125rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-warm-200);
  letter-spacing: -0.01em;
  position: relative;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.625rem;
  color: var(--color-warm-900);
}

p {
  margin-bottom: 1rem;
  font-size: 0.9375rem;
  line-height: 1.75;
}

ul, ol {
  margin-left: 1.25rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--color-warm-700);
  font-size: 0.9375rem;
  line-height: 1.7;
}

li::marker {
  color: var(--color-warm-300);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 99, 235, 0.2);
  transition: color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--color-accent-hover);
  border-bottom-color: var(--color-accent-hover);
}

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

strong {
  font-weight: 600;
  color: var(--color-warm-900);
}

time {
  font-style: normal;
}

/* ═══════════════════════════════════════════════════
   LINK CARDS — Elevated with gradient borders
   ═══════════════════════════════════════════════════ */
.link-cards {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
  list-style: none;
  padding: 0;
  margin-left: 0;
}

.link-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-warm-200);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  transition: transform 0.4s var(--ease-out-expo),
              box-shadow 0.4s ease,
              border-color 0.3s ease;
  overflow: hidden;
}

/* Accent left border on hover */
.link-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-accent);
  border-radius: 0 2px 2px 0;
  transform: scaleY(0);
  transition: transform 0.4s var(--ease-out-expo);
}

.link-card:hover::before {
  transform: scaleY(1);
}

.link-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-warm-300);
}

/* Arrow indicator */
.link-card::after {
  content: '\2192';
  position: absolute;
  right: 1.75rem;
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  font-size: 1.125rem;
  color: var(--color-warm-400);
  transition: transform 0.4s var(--ease-out-expo), color 0.3s ease;
}

.link-card:hover::after {
  transform: translateY(-50%) translateX(0);
  color: var(--color-accent);
}

.link-card a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.0625rem;
  text-decoration: none;
  border-bottom: none;
  color: var(--color-ink);
}

.link-card a::after {
  content: '';
  position: absolute;
  inset: 0;
}

.link-card a:hover {
  color: var(--color-accent);
}

.link-card p {
  font-size: 0.8125rem;
  color: var(--color-warm-500);
  margin: 0.25rem 0 0;
  line-height: 1.5;
}

/* ── Section Styles ── */
section {
  margin-bottom: 2.5rem;
}

.intro-text {
  font-size: 1.0625rem;
  color: var(--color-warm-500);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════════════
   FORM — Polished inputs with depth
   ═══════════════════════════════════════════════════ */
form {
  max-width: 560px;
  margin: 1.5rem 0 2.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-weight: 500;
  font-size: 0.8125rem;
  color: var(--color-warm-900);
  margin-bottom: 0.5rem;
  letter-spacing: 0.01em;
}

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 0.8125rem 1rem;
  border: 1px solid var(--color-warm-200);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-family: var(--font-body);
  color: var(--color-warm-900);
  background: var(--color-white);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.03);
  transition: border-color 0.25s ease,
              box-shadow 0.25s ease,
              background 0.25s ease;
}

input[type="text"]:hover,
input[type="email"]:hover,
select:hover,
textarea:hover {
  border-color: var(--color-warm-300);
}

input[type="text"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow),
              inset 0 1px 2px rgba(0,0,0,0.02);
  background: var(--color-warm-50);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-warm-400);
  font-weight: 400;
}

textarea {
  resize: vertical;
  min-height: 140px;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239CA3AF' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.8125rem 2rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.2),
              0 4px 12px rgba(37, 99, 235, 0.15);
  transition: all 0.3s var(--ease-out-expo);
}

.btn-submit:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25),
              0 8px 24px rgba(37, 99, 235, 0.2);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.2);
}

.btn-submit:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ═══════════════════════════════════════════════════
   FAQ — Elegant accordion
   ═══════════════════════════════════════════════════ */
details {
  border: 1px solid transparent;
  border-bottom-color: var(--color-warm-200);
  padding: 0;
  transition: background 0.3s ease, border-color 0.3s ease;
  border-radius: 0;
}

details:first-of-type {
  border-top-color: var(--color-warm-200);
}

details:hover {
  background: rgba(0,0,0,0.008);
}

details[open] {
  background: var(--color-warm-50);
  border-color: var(--color-warm-200);
  border-radius: var(--radius-sm);
  margin: 0.375rem 0;
  padding: 0 1rem;
  box-shadow: var(--shadow-sm);
}

summary {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 0;
  transition: color 0.2s ease;
  user-select: none;
}

summary:hover {
  color: var(--color-accent);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '';
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: 1rem;
  background: var(--color-warm-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background 0.3s ease, transform 0.4s var(--ease-out-expo);
}

/* Plus/minus icon via box-shadow trick */
summary::after {
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='10' viewBox='0 0 10 10' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5 1V9M1 5H9' stroke='%2378756E' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

details[open] summary::after {
  background-color: var(--color-accent-soft);
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='10' viewBox='0 0 10 10' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 5H9' stroke='%232563EB' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  transform: rotate(0deg);
}

details > *:not(summary) {
  padding-top: 0;
  padding-bottom: 1rem;
  animation: detailsReveal 0.3s var(--ease-out-expo) both;
}

@keyframes detailsReveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ═══════════════════════════════════════════════════
   SITE FOOTER
   ═══════════════════════════════════════════════════ */
.site-footer {
  background: var(--color-warm-100);
  border-top: 1px solid var(--color-warm-200);
  padding: 2.5rem 2rem;
  text-align: center;
  margin-top: auto;
}

.site-footer .footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 0.375rem;
  margin-bottom: 1rem;
  padding: 0;
}

.site-footer .footer-links li + li::before {
  content: '\00B7';
  color: var(--color-warm-300);
  margin-right: 0.375rem;
  font-size: 1.125rem;
}

.site-footer .footer-links a {
  font-size: 0.8125rem;
  color: var(--color-warm-500);
  text-decoration: none;
  border-bottom: none;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease;
}

.site-footer .footer-links a:hover {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

.site-footer .copyright {
  font-size: 0.75rem;
  color: var(--color-warm-400);
  letter-spacing: 0.01em;
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .site-header .header-inner {
    padding: 0 1rem;
    height: 60px;
  }

  .site-nav {
    gap: 0.25rem;
  }

  .site-nav a {
    font-size: 0.75rem;
    padding: 0.375rem 0.625rem;
  }

  .content {
    padding: 2.5rem 1.25rem 3.5rem;
  }

  .page-title {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.25rem;
    margin-top: 2.5rem;
  }

  .link-card {
    padding: 1.25rem 1.5rem;
  }

  .link-card::after {
    right: 1.5rem;
  }
}

@media (max-width: 480px) {
  .site-header .header-inner {
    flex-direction: column;
    height: auto;
    padding: 0.75rem 1rem;
    gap: 0.375rem;
  }

  .site-nav {
    gap: 0.125rem;
  }

  .content {
    padding: 2rem 1rem 3rem;
  }
}

/* ── Print ── */
@media print {
  .site-header, .site-footer {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }

  body::before {
    display: none;
  }

  a {
    color: #000;
    border-bottom: none;
    text-decoration: underline;
  }

  .content {
    max-width: 100%;
    padding: 0;
  }
}