/* Shared styles for every page.
   Bootstrap provides the grid and base components.
   Colors, fonts and radius come from theme.css. */

/* ---------- Base ---------- */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--color-text);
}

p {
  line-height: 1.75;
}

img {
  max-width: 100%;
  height: auto;
}

/* ---------- Spacing helpers ---------- */

.section {
  padding: 6rem 0;
}

.section-alt {
  background-color: var(--color-surface);
}

.section-accent {
  background-color: var(--color-accent);
}

.section-dark {
  background-color: var(--color-dark);
}

.section-surface-2 {
  background-color: var(--color-surface-2);
}

.mt-section {
  margin-top: 5rem;
}

.mt-tight {
  margin-top: 0.75rem;
}

.mt-medium {
  margin-top: 1.5rem;
}

.mt-large {
  margin-top: 3rem;
}

.narrow {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.narrow-sm {
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.center {
  text-align: center;
}

.center-block {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.center-cta {
  text-align: center;
  margin-top: 3rem;
}

/* ---------- Typography ---------- */

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

.muted {
  color: var(--color-muted);
}

.quote-mark {
  font-size: 3.5rem;
  line-height: 1;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.quote-text {
  font-size: 1.25rem;
  line-height: 1.7;
}

.quote-author {
  font-weight: 600;
  margin-top: 1.5rem;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-title-lg {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--color-muted);
  margin-bottom: 0;
}

.speaker-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.speaker-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.speaker-topic {
  color: var(--color-muted);
  margin-bottom: 0;
}

/* ---------- Images ---------- */

.img-rounded {
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

.hero-img {
  width: 100%;
  max-width: 28rem;
  margin: 0 auto;
  display: block;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
  will-change: transform;
}

.img-offset {
  transform: translateY(2rem);
}

.img-tile {
  height: 16rem;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  transition: background-color 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background-color: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--color-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-link {
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  transition: transform 0.5s ease;
}

.brand:hover .brand-logo {
  transform: rotate(-12deg) scale(1.08);
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

@media (max-width: 767px) {
  .nav-hide-md {
    display: none;
  }
}

@media (max-width: 575px) {
  .nav-hide-sm {
    display: none;
  }
}

/* ---------- Gradient links (white to gold, animated) ---------- */

.fancy-link {
  background-image: linear-gradient(90deg, var(--color-text), var(--color-primary-soft), var(--color-primary), var(--color-text));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradientShift 5s linear infinite;
  position: relative;
  text-decoration: none;
}

.fancy-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-text), var(--color-primary));
  transition: width 0.4s ease;
}

.fancy-link:hover::after {
  width: 100%;
}

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

.btn-gold {
  display: inline-block;
  padding: 0.9rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  color: var(--color-primary-contrast);
  background-image: linear-gradient(90deg, var(--color-text), var(--color-primary-soft), var(--color-primary), var(--color-text));
  background-size: 300% 100%;
  animation: gradientShift 5s linear infinite;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-gold:hover {
  color: var(--color-primary-contrast);
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-gold);
}

.btn-gold-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
}

.btn-gold-lg {
  padding: 1.1rem 2.4rem;
  font-size: 1.125rem;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 300% 50%;
  }
}

/* ---------- Cards ---------- */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  height: 100%;
  transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--color-primary) 50%, transparent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-lg {
  padding: 2.25rem;
}

/* Highlight block in Details */

.highlight-box {
  background-color: var(--color-accent);
  border-radius: var(--radius);
  padding: 2.5rem;
  margin-top: 4rem;
}

.highlight-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.highlight-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

@media (min-width: 768px) {
  .highlight-list {
    grid-template-columns: 1fr 1fr;
  }
}

.highlight-item {
  background-color: color-mix(in srgb, var(--color-text) 8%, transparent);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.highlight-item span {
  display: block;
  color: var(--color-muted);
  margin-top: 0.35rem;
}

/* Check list */

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .check-list {
    grid-template-columns: 1fr 1fr;
  }
}

.check-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.check-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  line-height: 1.2;
}

.check-text {
  font-size: 1.125rem;
  margin-bottom: 0;
}

/* Steps / pillars grid */

.pillar {
  text-align: center;
}

.pillar-icon {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

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

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: border-color 0.3s ease;
}

.faq-item[open] {
  border-color: color-mix(in srgb, var(--color-primary) 50%, transparent);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 1.05rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--color-primary);
  font-size: 1.3rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-answer {
  color: var(--color-muted);
  margin-top: 0.75rem;
  margin-bottom: 0;
}

/* ---------- Forms ---------- */

.form-card {
  max-width: 36rem;
  margin: 0 auto;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

@media (max-width: 575px) {
  .form-card {
    padding: 1.75rem;
  }
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

.form-check {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.form-check input {
  margin-top: 0.3rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
}

.form-intro {
  text-align: center;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

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

.site-footer {
  background-color: var(--color-dark);
  border-top: 1px solid var(--color-border);
  padding: 3.5rem 0;
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.footer-text {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-top: 1rem;
  margin-bottom: 0;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.footer-nav a {
  width: fit-content;
}

.footer-small {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.footer-small p {
  margin-bottom: 0.75rem;
}

.footer-small a {
  font-weight: 600;
}

/* ---------- Scroll reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.parallax {
  will-change: transform;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fancy-link,
  .btn-gold {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}