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

:root {
  --navy:       #0b0f1e;
  --navy-mid:   #131829;
  --navy-light: #1e2540;
  --blue:       #1a5cff;
  --blue-hover: #0047d4;
  --teal:       #00c9b1;
  --white:      #ffffff;
  --offwhite:   #f8f9fc;
  --text:       #1a1c2e;
  --text-muted: #6b7280;
  --border:     #e5e7eb;
  --radius:     6px;
  --max-width:  1200px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-hover); }

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

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul { list-style: none; }

/* ── Layout helpers ────────────────────────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 4rem 0; }
.section--dark { background: var(--navy); color: var(--white); }
.section--alt  { background: var(--offwhite); }

.grid-2  { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ── Header ────────────────────────────────────────────────────────────────── */
.site-header {
  background: var(--navy);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--navy-light);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-logo { text-decoration: none; }
.logo-text {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.01em;
}

.site-nav { display: flex; align-items: center; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-link {
  color: rgba(255,255,255,0.8);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--white); background: var(--navy-light); }

.nav-link--cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 0.5rem 1rem;
  font-weight: 600;
}
.nav-link--cta:hover { background: var(--blue-hover); }

/* Events dropdown */
.nav-item--events { position: relative; }
.nav-label {
  color: rgba(255,255,255,0.8);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-label::after { content: "▾"; font-size: 0.7rem; }

.nav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 220px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  z-index: 200;
  list-style: none;
}
.nav-item--events:hover .nav-dropdown { display: block; }
.nav-dropdown li a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
}
.nav-dropdown li:last-child a { border-bottom: none; }
.nav-dropdown li a:hover { background: var(--offwhite); color: var(--blue); }

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  background: var(--navy);
  color: var(--white);
  padding: 5rem 0 4rem;
  text-align: center;
}
.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  color: var(--teal);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hero-meta .sep { color: rgba(255,255,255,0.3); }
.hero h1 { margin-bottom: 1rem; color: var(--white); }
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 640px;
  margin: 0 auto 2rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  border: 2px solid transparent;
}
.btn--primary { background: var(--blue); color: var(--white); border-color: var(--blue); }
.btn--primary:hover { background: var(--blue-hover); border-color: var(--blue-hover); color: var(--white); }
.btn--outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.btn--outline:hover { border-color: var(--white); color: var(--white); }
.btn--outline-dark { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn--outline-dark:hover { background: var(--blue); color: var(--white); }

/* ── Logos row ─────────────────────────────────────────────────────────────── */
.logos-section { background: var(--offwhite); padding: 2.5rem 0; }
.logos-label {
  text-align: center;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-weight: 600;
}
.logos-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.5rem 2.5rem;
}
.logos-row img { height: 32px; width: auto; opacity: 0.7; filter: grayscale(100%); transition: opacity 0.15s; }
.logos-row img:hover { opacity: 1; filter: none; }
.logo-placeholder {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* ── Who should attend ─────────────────────────────────────────────────────── */
.attend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.attend-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}
.attend-card h3 { margin-bottom: 0.75rem; color: var(--navy); }
.attend-card ul { padding-left: 1.25rem; list-style: disc; }
.attend-card li { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0.5rem; }
@media (max-width: 700px) { .attend-grid { grid-template-columns: 1fr; } }

/* ── Tracks ────────────────────────────────────────────────────────────────── */
.tracks-list { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2rem; }
.track-item { padding: 1.25rem 1.5rem; background: var(--offwhite); border-radius: 8px; border-left: 4px solid var(--blue); }
.track-item h3 { margin-bottom: 0.5rem; font-size: 1rem; }
.track-item p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

/* ── Speaker grid ──────────────────────────────────────────────────────────── */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.speaker-card { text-align: center; }
.speaker-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 0.75rem;
  background: var(--navy-light);
}
.speaker-photo-placeholder {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--navy-light);
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: rgba(255,255,255,0.4);
}
.speaker-name { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.25rem; }
.speaker-role { font-size: 0.8rem; color: var(--text-muted); }

/* ── Agenda ────────────────────────────────────────────────────────────────── */
.agenda-day { margin-bottom: 3rem; }
.day-header {
  background: var(--navy);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 700;
}
.session-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.session-row:last-child { border-bottom: none; }
.session-time { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); padding-top: 0.125rem; }
.session-content {}
.session-type-badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.4rem;
  background: var(--offwhite);
  color: var(--text-muted);
}
.session-type-badge--keynote   { background: #eff6ff; color: #1d4ed8; }
.session-type-badge--panel     { background: #f0fdf4; color: #15803d; }
.session-type-badge--masterclass { background: #faf5ff; color: #7e22ce; }
.session-type-badge--networking { background: #fff7ed; color: #c2410c; }
.session-type-badge--breakout  { background: #fefce8; color: #a16207; }
.session-type-badge--roundtable { background: #f0fdfa; color: #0f766e; }
.session-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.4rem; }
.session-desc  { font-size: 0.85rem; color: var(--text-muted); }
.session-location { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.3rem; }
.session-speakers-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.session-speaker-chip {
  font-size: 0.75rem;
  color: var(--blue);
  background: #eff6ff;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
}
@media (max-width: 600px) {
  .session-row { grid-template-columns: 1fr; }
  .session-time { font-size: 0.75rem; }
}

/* ── Sponsor packages ──────────────────────────────────────────────────────── */
.sponsor-packages { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 2rem; }
.package-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem 2rem;
  align-items: start;
}
.package-card--sold-out { opacity: 0.6; }
.package-name { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.25rem; }
.package-desc { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.package-benefits { padding-left: 1.25rem; list-style: disc; }
.package-benefits li { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.package-pricing { text-align: right; min-width: 180px; }
.package-price-member { font-size: 1.3rem; font-weight: 800; color: var(--navy); }
.package-price-standard { font-size: 0.9rem; color: var(--text-muted); }
.package-price-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 0.25rem; }
.sold-out-badge {
  display: inline-block;
  background: #fee2e2;
  color: #991b1b;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
}
@media (max-width: 700px) {
  .package-card { grid-template-columns: 1fr; }
  .package-pricing { text-align: left; min-width: auto; }
}

/* ── Ticket cards ──────────────────────────────────────────────────────────── */
.tickets-section + .tickets-section { margin-top: 2.5rem; }
.tickets-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; margin-top: 1.25rem; }
.ticket-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.ticket-name { font-weight: 700; font-size: 1rem; }
.ticket-desc { font-size: 0.875rem; color: var(--text-muted); flex: 1; }
.ticket-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--navy);
}
.ticket-price--free { color: var(--teal); }
.ticket-status-sold-out { color: #991b1b; font-size: 0.8rem; font-weight: 700; }

/* ── Events listing (home) ──────────────────────────────────────────────────── */
.events-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 2rem; }
.event-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.event-card-header { background: var(--navy); color: var(--white); padding: 1.25rem 1.5rem; }
.event-region {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--teal);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.event-card-name { font-size: 1rem; font-weight: 700; }
.event-card-body { padding: 1.25rem 1.5rem; flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.event-date, .event-location { font-size: 0.875rem; color: var(--text-muted); }
.event-status {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  margin-top: auto;
}
.event-status--open    { background: #dcfce7; color: #166534; }
.event-status--announced { background: #f1f5f9; color: #475569; }
.event-status--sold_out { background: #fee2e2; color: #991b1b; }
.event-card-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); }

/* ── Contact form ──────────────────────────────────────────────────────────── */
.contact-form-wrap { max-width: 640px; }
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.4rem; }
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.6rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.15s;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,92,255,0.1);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-msg { margin-top: 0.75rem; font-size: 0.875rem; }
.form-msg--ok  { color: #166534; }
.form-msg--err { color: #991b1b; }

/* ── Subscribe ─────────────────────────────────────────────────────────────── */
.subscribe-form { margin-top: 1rem; max-width: 400px; }
.subscribe-row { display: flex; gap: 0.5rem; }
.subscribe-input {
  flex: 1;
  padding: 0.6rem 0.875rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 0.9rem;
}
.subscribe-input::placeholder { color: rgba(255,255,255,0.5); }
.subscribe-input:focus { outline: none; border-color: var(--teal); }
.subscribe-btn {
  padding: 0.6rem 1.25rem;
  background: var(--teal);
  color: var(--navy);
  border: none;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
}
.subscribe-btn:hover { opacity: 0.85; }
.subscribe-msg { margin-top: 0.5rem; font-size: 0.8rem; min-height: 1.2em; }
.subscribe-msg--ok  { color: var(--teal); }
.subscribe-msg--err { color: #fca5a5; }

/* ── Footer ────────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.8);
  padding: 3rem 0 2rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.footer-subscribe { margin-bottom: 2.5rem; }
.footer-subscribe h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 0.5rem; }
.footer-subscribe p  { font-size: 0.875rem; color: rgba(255,255,255,0.6); }

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-col h4 { color: var(--white); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.75rem; }
.footer-col ul { list-style: none; }
.footer-col li + li { margin-top: 0.5rem; }
.footer-col a { font-size: 0.875rem; color: rgba(255,255,255,0.6); }
.footer-col a:hover { color: var(--white); }

.footer-bottom { font-size: 0.8rem; color: rgba(255,255,255,0.4); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--white); }

/* ── Misc ──────────────────────────────────────────────────────────────────── */
.section-header { margin-bottom: 2rem; }
.section-header h2 { margin-bottom: 0.5rem; }
.section-header p { color: var(--text-muted); max-width: 600px; }

.tag-badge {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.stub-notice {
  background: var(--offwhite);
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 2rem;
}
.stub-notice p { color: var(--text-muted); font-size: 0.9rem; }

.location-box { margin-top: 1.5rem; }
.location-box h3 { margin-bottom: 0.5rem; }

@media (max-width: 600px) {
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}