/* ==========================================================================
   Global Styles
   ========================================================================== */
:root {
  --color-primary: #2a4d9b;
  --color-primary-dark: #1b326a;
  --color-secondary: #f4b41a;
  --color-accent: #eef3ff;
  --color-accent-strong: #f8f9ff;
  --color-text: #1d1d1f;
  --color-muted: #4b5563;
  --color-border: #d1d5db;
  --color-white: #ffffff;
  --shadow-lg: 0 24px 48px rgba(24, 41, 88, 0.12);
  --shadow-md: 0 16px 24px rgba(24, 41, 88, 0.1);
  --shadow-sm: 0 8px 16px rgba(24, 41, 88, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container-width: min(1100px, 90vw);
  --font-body: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Inter", sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: linear-gradient(180deg, #f6f8ff 0%, #ffffff 18%, #ffffff 100%);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: var(--container-width);
  margin: 0 auto;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  margin: 0 0 0.5em;
  font-size: 1.5em;
}

p {
  margin: 0 0 1em;
  text-align: justify;
  text-justify: inter-word;
}

.section {
  padding: 5rem 0;
}

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

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

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}

.section__header h2 {
  font-size: clamp(2.1rem, 3vw, 2.6rem);
}

.section__header p {
  color: var(--color-muted);
  max-width: 640px;
  margin: 0.5rem auto 0;
}

.section__grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.section__grid--aligned {
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.7rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 999px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn--primary {
  background: linear-gradient(135deg, #2a4d9b, #3f68d7);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid rgba(42, 77, 155, 0.2);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  background: rgba(42, 77, 155, 0.08);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.15);
}

.btn--sm {
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
}

/* ==========================================================================
   Top Bar & Navigation
   ========================================================================== */
.top-bar {
  background: linear-gradient(90deg, rgba(27, 50, 106, 0.92), rgba(63, 104, 215, 0.92));
  color: var(--color-white);
  font-size: 0.95rem;
  position: relative;
  box-shadow: 0 12px 24px rgba(15, 31, 76, 0.25);
}

.top-bar::after {
  content: "";
  position: absolute;
  inset: auto 0 -12px 0;
  height: 12px;
  background: linear-gradient(90deg, rgba(63, 104, 215, 0.45), rgba(244, 180, 26, 0.4));
  filter: blur(12px);
  opacity: 0.85;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(236, 241, 255, 0.9));
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 18px 42px rgba(15, 31, 76, 0.12);
  position: sticky;
}

.nav::before {
  content: "";
  position: absolute;
  inset: auto 5% -20px 5%;
  height: 26px;
  background: radial-gradient(circle at 50% 0%, rgba(63, 104, 215, 0.45), rgba(63, 104, 215, 0));
  filter: blur(18px);
  z-index: -1;
  pointer-events: none;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1.5rem;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.2rem;
}

.nav__brand span {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.04em;
}

.nav__logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(42, 77, 155, 0.25);
}

.nav__links {
  display: flex;
  align-items: center;
  
  gap: 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav__links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.66rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.nav__links a::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(63, 104, 215, 0.22), rgba(244, 180, 26, 0.2));
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: -2;
}

.nav__links a::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 6px 18px rgba(15, 31, 76, 0.2);
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: -3;
}

.nav__links a:hover,
.nav__links a:focus-visible,
.nav__links a.is-active,
.nav__links a[aria-current="page"] {
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.nav__links a:hover::before,
.nav__links a:focus-visible::before,
.nav__links a.is-active::before,
.nav__links a[aria-current="page"]::before {
  opacity: 1;
  transform: scale(1);
}

.nav__links a:hover::after,
.nav__links a:focus-visible::after,
.nav__links a.is-active::after,
.nav__links a[aria-current="page"]::after {
  opacity: 1;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(42, 77, 155, 0.2);
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.nav__toggle:hover {
  background: rgba(42, 77, 155, 0.08);
  border-color: rgba(42, 77, 155, 0.35);
}

.nav__toggle:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 999px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav__toggle.is-active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav__toggle.is-active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__toggle.is-active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  padding: 7rem 0 5rem;
  background: radial-gradient(circle at top left, rgba(63, 104, 215, 0.25), transparent 55%),
    radial-gradient(circle at bottom right, rgba(244, 180, 26, 0.22), transparent 60%),
    linear-gradient(180deg, rgba(238, 243, 255, 0.9), rgba(255, 255, 255, 0.95));
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.55;
  pointer-events: none;
}

.hero::before {
  top: -180px;
  left: -120px;
  background: rgba(63, 104, 215, 0.45);
}

.hero::after {
  bottom: -220px;
  right: -140px;
  background: rgba(244, 180, 26, 0.4);
}

.hero__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3.5rem;
  align-items: center;
}

.hero__eyebrow {
  display: inline-flex;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: rgba(63, 104, 215, 0.1);
  color: var(--color-primary-dark);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  line-height: 1.15;
}

.hero h1 span {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  margin-top: 0.5rem;
}

.hero__subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero__meta {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.hero__meta strong {
  font-size: 0.9rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__meta span {
  display: block;
  font-weight: 600;
  color: var(--color-text);
}

.hero__media {
  display: grid;
  gap: 1.5rem;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.4rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 243, 255, 0.92));
  border: 1px solid rgba(42, 77, 155, 0.14);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.countdown > div {
  position: relative;
  display: grid;
  place-items: center;
  gap: 0.45rem;
  padding: 1.35rem 1rem;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid rgba(42, 77, 155, 0.15);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75), 0 12px 24px rgba(24, 41, 88, 0.08);
  overflow: hidden;
}

.countdown > div::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(63, 104, 215, 0.1), rgba(244, 180, 26, 0.08));
  opacity: 0.9;
  pointer-events: none;
}

.countdown__value {
  position: relative;
  font-size: clamp(2.4rem, 6vw, 3.1rem);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.countdown__label {
  position: relative;
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.hero__card {
  padding: 1.8rem;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(63, 104, 215, 0.15), rgba(244, 180, 26, 0.15));
  backdrop-filter: blur(12px);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.hero__card h3 {
  margin-bottom: 1rem;
}

.hero__card ul {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
}

.hero__card li {
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.hero__card p {
  margin: 0;
  color: var(--color-text);
}

/* ==========================================================================
   Cards, Timeline, Grids
   ========================================================================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  padding: 1.6rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(42, 77, 155, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

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

.timeline {
  display: grid;
  gap: 1.5rem;
}

.timeline__item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border-left: 6px solid rgba(42, 77, 155, 0.4);
}

.timeline__item--highlight {
  border-color: var(--color-secondary);
  background: linear-gradient(135deg, rgba(244, 180, 26, 0.14), rgba(255, 255, 255, 0.9));
}

.timeline__date {
  display: inline-block;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   Scope Cards
   ========================================================================== */
.scope__card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top right, rgba(63, 104, 215, 0.15), transparent 60%),
    var(--color-white);
  box-shadow: var(--shadow-lg);
}

.scope__card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.scope__card li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.8rem;
  color: var(--color-muted);
}

.scope__card li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-secondary);
  font-size: 1.4rem;
  line-height: 1;
}

/* ==========================================================================
   Committee
   ========================================================================== */
.committee {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(42, 77, 155, 0.08);
}

.committee__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.committee__tab {
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  border: 1px solid rgba(42, 77, 155, 0.2);
  background: rgba(42, 77, 155, 0.05);
  color: var(--color-primary);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.committee__tab:hover {
  transform: translateY(-2px);
  border-color: rgba(42, 77, 155, 0.35);
}

.committee__tab.is-active {
  background: linear-gradient(135deg, rgba(42, 77, 155, 0.88), rgba(63, 104, 215, 0.88));
  color: var(--color-white);
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}

.committee__panels {
  margin-top: 2.5rem;
}

.committee-panel {
  background: radial-gradient(circle at top right, rgba(63, 104, 215, 0.08), transparent 65%),
    rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid rgba(42, 77, 155, 0.1);
  box-shadow: var(--shadow-sm);
  animation: fadeIn 0.35s ease;
}

.committee-panel[hidden] {
  display: none;
}

.committee-panel__header h3 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.committee-panel__header p {
  margin: 0 0 1.5rem;
  color: var(--color-muted);
}

.committee-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.committee-panel__list li {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(42, 77, 155, 0.06);
  color: var(--color-muted);
  line-height: 1.45;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.committee-panel__list span {
  display: block;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.committee-panel__list--columns {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.committee-panel__split {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.committee-panel__split h4 {
  margin: 0 0 0.8rem;
  font-family: var(--font-heading);
  color: var(--color-primary);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Call for Papers
   ========================================================================== */
.callout-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.callout {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(42, 77, 155, 0.1);
}

.callout--highlight {
  background: linear-gradient(135deg, rgba(42, 77, 155, 0.85), rgba(63, 104, 215, 0.9));
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.callout--highlight ul {
  color: rgba(255, 255, 255, 0.9);
}

.callout__list {
  columns: 2;
  column-gap: 2rem;
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
}

.callout__list li {
  margin-bottom: 0.6rem;
  color: var(--color-muted);
}

.callout__list li::before {
  content: "•";
  margin-right: 0.4rem;
  color: var(--color-secondary);
}

/* ==========================================================================
   Highlights
   ========================================================================== */
.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.highlight {
  padding: 1.6rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid rgba(42, 77, 155, 0.08);
  box-shadow: var(--shadow-sm);
}

.highlight h3 {
  margin-bottom: 0.5rem;
}

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

/* ==========================================================================
   Registration
   ========================================================================== */
.registration {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}

.registration::before {
  content: "";
  position: absolute;
  inset: -30px -40px -40px -40px;
  background: linear-gradient(160deg, rgba(63, 104, 215, 0.1), rgba(244, 180, 26, 0.08));
  border-radius: 48px;
  filter: blur(70px);
  z-index: -1;
}

.registration__details,
.registration__form {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.registration__form {
  position: relative;
  background: radial-gradient(circle at top right, rgba(63, 104, 215, 0.25), transparent 55%),
    radial-gradient(circle at bottom left, rgba(244, 180, 26, 0.16), transparent 60%),
    var(--color-white);
  border: 1px solid rgba(42, 77, 155, 0.08);
}

.registration__details h3,
.registration__form h3 {
  font-size: 1.5rem;
}

.fee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.8rem;
  margin-bottom: 2.2rem;
}

.fee-card {
  position: relative;
  padding: 2rem;
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(42, 77, 155, 0.08), rgba(255, 255, 255, 0.95));
  border: 1px solid rgba(42, 77, 155, 0.12);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 1.2rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-align: left;
}

.fee-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.fee-card header h4 {
  margin: 0.25rem 0 0;
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  font-size: 1.32rem;
}

.fee-card__tag {
  display: inline-flex;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(244, 180, 26, 0.18);
  color: var(--color-primary-dark);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.fee-card__tag--accent {
  background: rgba(63, 104, 215, 0.16);
  color: var(--color-primary);
}

.fee-card__tag--vip {
  background: rgba(17, 144, 82, 0.16);
  color: #0f6a44;
}

.fee-card__pricing {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-sm);
  padding: 1.1rem;
  border: 1px solid rgba(42, 77, 155, 0.1);
  text-align: left;
}

.fee-card__pricing div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.fee-card__pricing span {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}

.fee-card__pricing small {
  display: block;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.fee-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
  color: var(--color-muted);
}

.fee-card ul li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.fee-card ul li::before {
  content: "•";
  color: var(--color-secondary);
  font-size: 1.2rem;
  line-height: 1;
}

.fee-card--highlight {
  background: linear-gradient(160deg, rgba(42, 77, 155, 0.16), rgba(63, 104, 215, 0.26));
  border-color: rgba(63, 104, 215, 0.3);
}

.bank-card {
  padding: 1.4rem;
  border-radius: var(--radius-sm);
  background: rgba(42, 77, 155, 0.08);
}

.bank-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.bank-card li {
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.bank-card strong {
  display: inline-block;
  min-width: 160px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
  margin-bottom: 2rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-weight: 600;
  color: var(--color-muted);
}

.form-field__label {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(42, 77, 155, 0.8);
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 0.95rem 1.15rem;
  border-radius: 14px;
  border: 1px solid rgba(42, 77, 155, 0.18);
  font: inherit;
  background: rgba(255, 255, 255, 0.95);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  min-height: 58px;
  width: 100%;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: rgba(42, 77, 155, 0.35);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(63, 104, 215, 0.14);
  transform: translateY(-1px);
}

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

.form-field select {
  appearance: none;
  background-image: url('data:image/svg+xml,%3Csvg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M1 1.5l5 5 5-5" stroke="%232a4d9b" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/%3E%3C/svg%3E');
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 12px 8px;
  padding-right: 2.5rem;
}

.form-grid__wide {
  grid-column: span 2;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.checkbox input {
  margin-top: 0.4rem;
}

.form__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.form__status {
  font-size: 0.9rem;
  font-weight: 600;
}

.form__status--success {
  color: #0b8a55;
}

.form__status--error {
  color: #c53030;
}

/* ==========================================================================
   Venue
   ========================================================================== */
.list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-muted);
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-secondary);
}

.venue__map {
  width: 100%;
  height: 320px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--color-white);
}

/* ==========================================================================
   Contact & FAQ
   ========================================================================== */
.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.contact ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--color-muted);
}

.accordion {
  display: grid;
  gap: 1rem;
}

.accordion__item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.accordion__trigger {
  width: 100%;
  padding: 1.1rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font: inherit;
  font-weight: 600;
  color: var(--color-primary-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion__trigger::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--color-secondary);
  transition: transform 0.2s ease;
}

.accordion__trigger[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 1.5rem;
}

.accordion__content p {
  padding-bottom: 1.2rem;
  color: var(--color-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #0f1f4c;
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 1.5rem;
}

.footer__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 2rem;
}

.footer__brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer h4 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--color-white);
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer ul li {
  margin-bottom: 0.6rem;
}

.footer__subscribe {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.footer__subscribe input {
  flex: 1;
  min-width: 220px;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: none;
  font: inherit;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
}

.back-to-top {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.35);
}

/* ==========================================================================
   Responsive Utilities
   ========================================================================== */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__meta {
    justify-items: center;
  }

  .hero__media {
    max-width: 520px;
    margin: 0 auto;
  }

  .registration {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .nav__links {
    position: fixed;
    inset: 76px 1.2rem auto 1.2rem;
    display: grid;
    gap: 1.4rem;
    padding: 2.4rem 1.8rem 3rem;
    background: linear-gradient(150deg, rgba(255, 255, 255, 0.98), rgba(236, 241, 255, 0.92));
    border-radius: 24px;
    transform: translateY(-140%);
    transition: transform 0.35s ease, opacity 0.35s ease;
    box-shadow: 0 20px 48px rgba(15, 31, 76, 0.22);
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    opacity: 0;
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav__links a {
    justify-content: flex-start;
    width: 100%;
  }

  .nav__toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  .top-bar__info {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: 4rem 0;
  }

  .section__grid {
    grid-template-columns: 1fr;
  }

  .committee__columns {
    columns: 1;
  }

  .callout__list {
    columns: 1;
  }

  .form-grid__wide {
    grid-column: span 1;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 560px) {
  .hero__actions {
    flex-direction: column;
  }

  .registration__details,
  .registration__form {
    padding: 1.4rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}