/* ISPE 2026 layout; shared tokens and components live in design-system.css. */
:root { --page-gutter: clamp(20px, 5vw, 72px); --content-width: 1200px; --radius-sm: 0; --radius-md: 0; --radius-lg: 0; }
html { scroll-behavior: smooth; }
body { text-wrap: pretty; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; }
a { color: var(--color-accent-700); }
a:hover { color: var(--color-accent-900); }
a:active { color: var(--color-accent-800); }
p, h1, h2, h3 { margin: 0; }
svg { flex-shrink: 0; vertical-align: middle; }
.container { max-width: var(--content-width); margin-inline: auto; }
.section-pad { padding: clamp(48px, 6vw, 88px) var(--page-gutter); }
.section-stack { display: flex; flex-direction: column; gap: 32px; }
.dark-section { background: var(--color-accent-900); color: var(--color-bg); }
.site-nav { background: var(--color-accent-900); color: var(--color-bg); padding: 18px var(--page-gutter); flex-wrap: wrap; gap: 8px 32px; }
.brand { margin-right: auto; display: flex; align-items: center; }
.brand img { width: auto; height: 44px; }
.site-nav a:not(.brand), .site-footer > a:not(.brand) { color: var(--color-accent-200); font-family: var(--font-heading); font-size: 17px; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; }
.site-nav a:hover, .site-footer a:hover { color: var(--color-accent); }
.site-nav a:active, .site-footer a:active { color: var(--color-accent-400); }
.hero { padding: clamp(40px, 6vw, 88px) var(--page-gutter); }
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 48px; align-items: center; }
.hero-copy { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.kicker { font: 600 13px/1.55 var(--font-body); letter-spacing: .12em; text-transform: uppercase; color: var(--color-accent-700); }
.hero-kicker { font-size: 14px; color: var(--color-accent-300); }
.hero h1 { font-size: clamp(48px, 7vw, 92px); line-height: .98; letter-spacing: .01em; text-transform: uppercase; }
.event-meta { display: flex; flex-wrap: wrap; gap: 12px 32px; font: 400 24px/1.55 var(--font-heading); letter-spacing: .04em; text-transform: uppercase; }
.event-meta span { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.event-meta svg { color: var(--color-accent-300); }
.hero-description { font-size: 17px; line-height: 1.55; max-width: 58ch; color: var(--color-accent-100); }
.hero-description strong { color: var(--color-bg); }
.actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-actions { margin-top: 8px; }
.btn { font-family: var(--font-body); font-size: 15px; font-weight: 600; line-height: 1.2; padding: 12px 20px; gap: 10px; white-space: nowrap; }
.btn-primary, .btn-primary:hover, .btn-primary:active { color: var(--color-bg); }
.hero-actions .btn { padding: 14px 22px; }
.hero-actions .btn-secondary { color: var(--color-bg); border-color: var(--color-accent-500); }
.dark-section .btn-secondary:hover { background: color-mix(in srgb, var(--color-bg) 7%, transparent); }
.dark-section .btn-secondary:active { background: color-mix(in srgb, var(--color-bg) 14%, transparent); }
.btn-light { background: var(--color-accent-300); border-color: var(--color-accent-300); color: var(--color-accent-900); }
.btn-light:hover { background: var(--color-accent-200); color: var(--color-accent-900); }
.btn-light:active { background: var(--color-accent-100); color: var(--color-accent-900); }
.btn-light > .corner, .hero-photo > .corner { color: var(--color-accent-300); }
.hero-photo { aspect-ratio: 4 / 3; width: 100%; min-width: 0; border-color: var(--color-accent-700); }
.photo-clip { position: absolute; inset: 0; height: 100%; width: 100%; }
.photo-clip img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.27); object-position: 52% 48%; }
.section-heading { padding-bottom: 12px; border-bottom: 1px solid var(--color-divider); }
.audience-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr)); gap: 40px; }
.audience-card { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); min-width: 0; }
.audience-copy { padding: 32px; display: flex; flex-direction: column; gap: 20px; min-width: 0; }
.card-symbol { color: var(--color-accent); }
.audience-copy h3 { font-size: 34px; line-height: 1.05; text-transform: uppercase; letter-spacing: .01em; }
.audience-copy p { font-size: 16px; line-height: 1.55; }
.muted { color: color-mix(in srgb, var(--color-text) 80%, transparent); }
.audience-copy .btn { margin-top: auto; align-self: flex-start; }
.card-photo { min-height: 280px; border-left: 1px solid var(--color-divider); }
.card-photo img, .contact-photo img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.careers-photo img { object-position: 70% center; }
.expertise { padding-block: clamp(48px, 6vw, 80px); }
.expertise .section-heading { color: var(--color-accent-300); border-color: var(--color-accent-700); }
.expertise-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); border-top: 1px solid var(--color-accent-700); border-left: 1px solid var(--color-accent-700); }
.expertise-cell { padding: 32px 20px; display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center; border-right: 1px solid var(--color-accent-700); border-bottom: 1px solid var(--color-accent-700); }
.expertise-cell svg { color: var(--color-accent-300); }
.expertise-cell h3 { font-size: 19px; font-weight: 400; line-height: 1.15; letter-spacing: .06em; text-transform: uppercase; }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }
.contact-photo { min-height: 420px; }
.contact-copy { padding: clamp(40px, 5vw, 72px); display: flex; flex-direction: column; gap: 22px; justify-content: center; min-width: 0; }
.brand-mark { width: 96px; height: auto; }
.contact-copy h2 { font-size: clamp(40px, 5vw, 64px); line-height: 1; text-transform: uppercase; letter-spacing: .01em; }
.info-plate { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.info-plate span { padding: 18px 20px; display: flex; align-items: center; gap: 12px; font: 400 22px/1.55 var(--font-heading); letter-spacing: .04em; text-transform: uppercase; white-space: nowrap; }
.info-plate svg { color: var(--color-accent); }
.contact-description { font-size: 18px; line-height: 1.55; max-width: 44ch; }
.contact-actions { gap: 14px; }
.site-footer { background: var(--color-accent-900); color: var(--color-bg); padding: 28px var(--page-gutter); display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; }
.site-footer .brand img { height: 36px; }
.site-footer > a:not(.brand) { font-size: 16px; }
.social-links { display: flex; gap: 8px; }
.social-links .btn { width: 36px; height: 36px; padding: 0; color: var(--color-accent-200); border-color: var(--color-accent-700); }
.social-links .btn:hover { background: var(--color-accent-800); }
.social-links .btn:active { background: var(--color-accent-700); }
.copyright { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--color-accent-200); }
.skip-link { position: absolute; top: -100px; left: 20px; padding: 12px 20px; z-index: 10; background: var(--color-bg); }
.skip-link:focus { top: 12px; }
.flash-messages { padding: 24px var(--page-gutter); }
.notice { padding: 16px 20px; margin-bottom: 12px; border: 1px solid var(--color-accent-700); border-left-width: 4px; background: var(--color-accent-100); }
.notice.error, .notice.warning { border-left-color: var(--color-text); }
.form-page { max-width: 900px; padding: clamp(40px, 6vw, 72px) var(--page-gutter); margin-inline: auto; }
.form-page h1 { font-size: clamp(40px, 5vw, 64px); line-height: 1; text-transform: uppercase; letter-spacing: .01em; margin-block: 16px 24px; }
.form-page > p { font-size: 17px; }
.form-page .eyebrow { font-size: 13px; color: var(--color-accent-700); font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.form-page form { margin-top: 32px; padding: 32px; gap: 20px; }
.fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
form label { display: block; font-weight: 500; }
.input { margin-top: 8px; padding: 12px; font-size: 16px; min-height: 46px; }
.input::file-selector-button { font: inherit; padding: 6px 12px; margin-right: 12px; border: 1px solid var(--color-divider); background: var(--color-bg); color: var(--color-text); cursor: pointer; }
.hint { color: var(--color-accent-700); font-size: 14px; }
form .btn { align-self: flex-start; }
@media (max-width: 560px) {
  .site-nav { gap: 12px 24px; }
  .site-nav .brand { flex-basis: 100%; }
  .brand img { max-width: 100%; height: auto; max-height: 44px; }
  .fields { grid-template-columns: 1fr; }
  .form-page form { padding: 24px; }
  .btn { white-space: normal; text-align: center; max-width: 100%; }
  .audience-copy { padding: 24px; }
  .card-photo { border-left: 0; border-top: 1px solid var(--color-divider); }
  .site-footer .brand { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }