/* =============================================
   VBC WORKSHOP 2026 — Stylesheet
   Color System: Deep Navy / Gold / Aqua
   Fonts: Cinzel (display), Outfit (body), Playfair Display (accent)
   ============================================= */

/* ---- VARIABLES ---- */
:root {
  --navy-deepest: #050d1a;
  --navy-deep: #0a1628;
  --navy-mid: #0f2240;
  --navy-light: #162d54;
  --blue-royal: #1a4a8a;
  --blue-bright: #2196F3;
  --blue-aqua: #00d4ff;
  --blue-glow: #00e5ff;
  --gold: #c9a84c;
  --gold-light: #e4cc7a;
  --gold-dark: #a08030;
  --white: #ffffff;
  --white-90: rgba(255,255,255,0.9);
  --white-70: rgba(255,255,255,0.7);
  --white-50: rgba(255,255,255,0.5);
  --white-20: rgba(255,255,255,0.2);
  --white-10: rgba(255,255,255,0.1);
  --font-display: 'Cinzel', serif;
  --font-body: 'Outfit', sans-serif;
  --font-accent: 'Playfair Display', serif;
}

/* ---- RESET ---- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--navy-deepest);
  color: var(--white-90);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--blue-aqua); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; }

/* ---- OCEAN BACKGROUND ---- */
.ocean-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  background: linear-gradient(180deg, var(--navy-deepest) 0%, var(--navy-deep) 30%, var(--navy-mid) 60%, var(--navy-deep) 100%);
}

.ocean-bg::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse 600px 200px at 20% 30%, rgba(0,212,255,0.03) 0%, transparent 70%),
    radial-gradient(ellipse 800px 300px at 80% 60%, rgba(26,74,138,0.05) 0%, transparent 70%);
  animation: ambientShift 20s ease-in-out infinite alternate;
}

@keyframes ambientShift {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

/* ---- FLOATING BUBBLES ---- */
.bubble {
  position: fixed;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(0,212,255,0.15), rgba(0,212,255,0.02));
  border: 1px solid rgba(0,212,255,0.08);
  animation: float linear infinite;
  pointer-events: none;
  z-index: -1;
}

@keyframes float {
  0% { transform: translateY(100vh) scale(1); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(0.5); opacity: 0; }
}

/* =============================================
   NAVIGATION
   ============================================= */
nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 2rem;
  transition: all 0.4s ease;
  background: rgba(5,13,26,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--white-10);
}

nav.scrolled {
  padding: 0.6rem 2rem;
  background: rgba(5,13,26,0.95);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--white-90);
  text-transform: uppercase;
  line-height: 1.3;
}

.nav-logo-text span {
  color: var(--gold);
  font-size: 0.85rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--white-70);
  text-transform: uppercase;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--gold-light); }

.nav-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--navy-deepest) !important;
  padding: 0.6rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: transform 0.3s, box-shadow 0.3s !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(201,168,76,0.3);
  color: var(--navy-deepest) !important;
}

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  background: none;
  border: none;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--white-90);
  transition: 0.3s;
}

/* Mobile menu */
.nav-links.mobile-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: rgba(5,13,26,0.98);
  padding: 2rem;
  gap: 1.5rem;
  border-bottom: 1px solid var(--white-10);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse 80% 50% at 50% 40%, rgba(0,212,255,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 30% 70%, rgba(26,74,138,0.08) 0%, transparent 60%);
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  top: -20%; left: 30%;
  width: 40%; height: 80%;
  background: linear-gradient(180deg, rgba(0,212,255,0.04) 0%, transparent 100%);
  transform: rotate(-5deg);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 850px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-dark);
  padding: 0.5rem 1.5rem;
  margin-bottom: 2rem;
  animation: fadeInDown 1s ease 0.2s both;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 0.5rem;
  animation: fadeInUp 1s ease 0.4s both;
}

.hero h1 .accent {
  font-family: var(--font-accent);
  font-style: italic;
  color: var(--gold);
  font-weight: 400;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--white-70);
  margin-bottom: 2.5rem;
  font-weight: 300;
  letter-spacing: 0.02em;
  animation: fadeInUp 1s ease 0.6s both;
}

.hero-details {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease 0.8s both;
}

.hero-detail { text-align: center; }

.hero-detail-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--blue-aqua);
  margin-bottom: 0.25rem;
}

.hero-detail-value {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--white);
  font-weight: 600;
}

.hero-cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--navy-deepest);
  padding: 1rem 3rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: transform 0.3s, box-shadow 0.3s;
  animation: fadeInUp 1s ease 1s both;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.3);
  color: var(--navy-deepest);
}

.hero-hosts {
  margin-top: 3rem;
  animation: fadeInUp 1s ease 1.2s both;
}

.hero-hosts-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--white-50);
  margin-bottom: 1rem;
}

.hero-hosts-logos {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.host-logo {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--white-50);
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem;
  border: 1px solid var(--white-10);
  border-radius: 4px;
  display: flex;
  align-items: center;
}

.host-logo img {
  display: block;
  height: 40px;
  width: auto;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   SECTION UTILITIES
   ============================================= */
section {
  position: relative;
  padding: 6rem 2rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gold);
  font-family: var(--font-display);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--white-70);
  max-width: 650px;
  font-weight: 300;
  line-height: 1.7;
}

.divider {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--blue-aqua));
  margin: 2rem 0;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  background: linear-gradient(180deg, transparent 0%, rgba(15,34,64,0.3) 50%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.about-text p {
  color: var(--white-70);
  margin-bottom: 1.25rem;
  font-weight: 300;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--white-10);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-dark);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--white-50);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* =============================================
   WHY ATTEND
   ============================================= */
.why-attend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.why-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
  border: 1px solid var(--white-10);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  transition: transform 0.3s, border-color 0.3s;
}

.why-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue-aqua);
}

.why-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(26,74,138,0.2));
  border: 1px solid rgba(0,212,255,0.2);
}

.why-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.why-card p {
  color: var(--white-70);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.7;
}

/* =============================================
   SCHEDULE
   ============================================= */
.schedule {
  background: linear-gradient(180deg, transparent 0%, rgba(10,22,40,0.5) 50%, transparent 100%);
}

.schedule-days {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.schedule-day {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--white-10);
  border-radius: 12px;
  overflow: hidden;
}

.schedule-day-header {
  background: linear-gradient(135deg, var(--navy-light), var(--blue-royal));
  padding: 1.5rem 2rem;
  border-bottom: 2px solid var(--gold);
}

.schedule-day-header h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--white);
  font-weight: 700;
}

.schedule-day-header p {
  font-size: 0.8rem;
  color: var(--gold-light);
  margin-top: 0.25rem;
}

.schedule-items { padding: 1.5rem 2rem; }

.schedule-item {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--white-10);
}

.schedule-item:last-child { border-bottom: none; }

.schedule-time {
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--blue-aqua);
  white-space: nowrap;
  min-width: 130px;
  letter-spacing: 0.02em;
}

.schedule-event {
  font-size: 0.95rem;
  color: var(--white-90);
}

.schedule-event .highlight {
  color: var(--gold);
  font-weight: 500;
}

/* =============================================
   AUDIENCE / WHO ATTENDS
   ============================================= */
.audience-roles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.role-tag {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--white-10);
  border-left: 3px solid var(--gold);
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--white-90);
  border-radius: 0 6px 6px 0;
  transition: background 0.3s;
}

.role-tag:hover { background: rgba(255,255,255,0.06); }

/* =============================================
   VENUE
   ============================================= */
.venue {
  background: linear-gradient(180deg, transparent 0%, rgba(15,34,64,0.2) 50%, transparent 100%);
}

.venue-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.venue-image {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--white-10);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--navy-mid), var(--blue-royal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  color: var(--white-50);
  font-size: 0.9rem;
  text-align: center;
  padding: 2rem;
  letter-spacing: 0.1em;
}

.venue-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.venue-info h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.venue-info .venue-address {
  font-size: 0.9rem;
  color: var(--blue-aqua);
  margin-bottom: 1.5rem;
}

.venue-info p {
  color: var(--white-70);
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* =============================================
   2025 RECAP TEASER
   ============================================= */
.recap-teaser {
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(201,168,76,0.03), transparent);
}

.recap-teaser .recap-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-dark);
  padding: 0.75rem 2rem;
  border-radius: 4px;
  transition: all 0.3s;
}

.recap-teaser .recap-link:hover {
  background: rgba(201,168,76,0.1);
  color: var(--gold-light);
}

/* =============================================
   SPONSORSHIP
   ============================================= */
.sponsorship {
  background: linear-gradient(180deg, transparent, rgba(10,22,40,0.4), transparent);
}

.sponsor-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.sponsor-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--white-10);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
  position: relative;
}

.sponsor-card:hover { transform: translateY(-6px); }

.sponsor-card.platinum { border-color: var(--gold-dark); }

.sponsor-card.platinum .sponsor-card-header {
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  color: var(--navy-deepest);
}

.sponsor-card.gold .sponsor-card-header {
  background: linear-gradient(135deg, #b8860b, #daa520);
  color: var(--navy-deepest);
}

.sponsor-card.silver .sponsor-card-header {
  background: linear-gradient(135deg, #708090, #b0c4de);
  color: var(--navy-deepest);
}

.sponsor-card-header {
  padding: 1.5rem 2rem;
  text-align: center;
}

.sponsor-card-header h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sponsor-card-header .price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.sponsor-card-header .limit {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-top: 0.25rem;
}

.sponsor-card-body { padding: 2rem; }

.sponsor-benefit {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 0;
  font-size: 0.88rem;
  color: var(--white-70);
  line-height: 1.5;
}

.sponsor-benefit .check {
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.sponsor-benefit .x-mark {
  color: var(--white-20);
  flex-shrink: 0;
  margin-top: 2px;
}

.sponsor-note {
  text-align: center;
  margin-top: 2rem;
  color: var(--white-50);
  font-size: 0.85rem;
  font-style: italic;
}

/* =============================================
   FAQ
   ============================================= */
.faq-list {
  max-width: 800px;
  margin: 3rem auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--white-10);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  padding: 1.5rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
}

.faq-question:hover { color: var(--gold-light); }

.faq-question .icon {
  font-size: 1.2rem;
  color: var(--gold);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.open .faq-question .icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

.faq-answer p {
  color: var(--white-70);
  font-weight: 300;
  line-height: 1.8;
  font-size: 0.95rem;
}

/* =============================================
   CTA
   ============================================= */
.cta-section {
  text-align: center;
  padding: 8rem 2rem;
  background: radial-gradient(ellipse 70% 50% at 50% 50%, rgba(0,212,255,0.04) 0%, transparent 70%);
}

.cta-section .section-title { margin-bottom: 1rem; }

.cta-section p {
  color: var(--white-70);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
  font-weight: 300;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--navy-deepest);
  padding: 1.1rem 3.5rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.3);
  color: var(--navy-deepest);
}

.cta-email {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--white-50);
}

.cta-email a { color: var(--blue-aqua); }

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--navy-deepest);
  border-top: 1px solid var(--white-10);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-logos {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--white-50);
  letter-spacing: 0.05em;
}

footer p {
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
}

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 968px) {
  .about-grid,
  .venue-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .schedule-days { grid-template-columns: 1fr; }
  .sponsor-tiers {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
  }
  .why-attend-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-details {
    flex-direction: column;
    gap: 1.5rem;
  }
  section { padding: 4rem 1.25rem; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .audience-roles { grid-template-columns: 1fr; }
}