/* Campus CEO Conference 2026 — Brand: orange, black, white */
:root {
  --orange: #f26522;
  --orange-dark: #d45212;
  --orange-glow: rgba(242, 101, 34, 0.35);
  --black: #0a0a0a;
  --black-soft: #141414;
  --gray: #2a2a2a;
  --gray-light: #6b6b6b;
  --white: #ffffff;
  --cream: #f5e6d3;
  --pink: #ff4da6;
  --font: "DM Sans", system-ui, sans-serif;
  --font-display: "Outfit", var(--font);
  --radius: 12px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  --header-h: 76px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--white);
  background: var(--black);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--orange);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--white);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 1rem;
}

ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1.5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
}

.logo-link:hover {
  color: var(--white);
}

.logo-link img {
  height: 44px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.logo-text span {
  display: block;
  color: var(--orange);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

.nav-desktop a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-desktop a:hover,
.nav-desktop a.active {
  color: var(--orange);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--black-soft);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 1.5rem 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  color: var(--white);
  padding: 0.65rem 0;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-mobile a.active {
  color: var(--orange);
}

@media (min-width: 900px) {
  .nav-desktop {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--orange);
  color: var(--black);
  box-shadow: 0 8px 24px var(--orange-glow);
}

.btn-primary:hover {
  background: var(--orange-dark);
  color: var(--black);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  border-color: var(--orange);
  color: var(--orange);
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url("../assets/hero-bg.jpg") center / cover no-repeat;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 10, 0.88) 0%,
    rgba(10, 10, 10, 0.72) 45%,
    rgba(10, 10, 10, 0.85) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(242, 101, 34, 0.2);
  border: 1px solid var(--orange);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.25rem;
}

.hero h1 .accent {
  color: var(--orange);
}

.mantra {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  font-style: italic;
  color: var(--orange);
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
  line-height: 1.25;
}

.mantra--hero {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  margin-bottom: 0.5rem;
}

.mantra--page {
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.88);
  max-width: 36rem;
  margin-bottom: 1.75rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  margin-bottom: 2rem;
}

.hero-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.hero-meta-item svg {
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--orange);
}

.hero-meta-item strong {
  display: block;
  font-size: 0.95rem;
}

.hero-meta-item span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Sections */
main {
  padding-top: var(--header-h);
}

.page-hero {
  padding: calc(var(--header-h) + 3rem) 0 2.5rem;
  background: linear-gradient(180deg, var(--black-soft) 0%, var(--black) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-hero h1 {
  margin-bottom: 0.5rem;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 40rem;
}

.page-hero .mantra--page {
  margin-bottom: 0.75rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--black-soft);
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.75rem;
}

.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  color: rgba(255, 255, 255, 0.25);
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.divider-diamond {
  width: 8px;
  height: 8px;
  background: var(--orange);
  transform: rotate(45deg);
}

/* Cards grid */
.grid-2 {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 700px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--gray);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition), transform var(--transition);
}

.card:hover {
  border-color: rgba(242, 101, 34, 0.4);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(242, 101, 34, 0.15);
  border-radius: 10px;
  color: var(--orange);
  margin-bottom: 1rem;
}

/* Stats strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--orange);
}

.stat span {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
}

/* Early bird banner */
.early-bird-banner {
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(145deg, var(--black-soft), var(--gray));
  border: 1px solid rgba(242, 101, 34, 0.3);
  border-radius: var(--radius);
}

.early-bird-banner .selling {
  font-style: italic;
  color: var(--orange);
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.early-bird-title {
  font-family: "Bebas Neue", var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  letter-spacing: 0.04em;
  color: var(--cream);
  text-shadow: 2px 2px 0 var(--black);
  line-height: 1;
  margin: 0;
}

.early-bird-title .tickets {
  font-family: "Pacifico", cursive;
  color: var(--pink);
  font-size: 0.55em;
  text-shadow: 0 0 20px rgba(255, 77, 166, 0.6);
}

.early-bird-deadline {
  margin-top: 1rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
}

/* Speakers coming soon */
.speaker-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.speaker-card {
  text-align: center;
  background: var(--gray);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  border: 1px dashed rgba(255, 255, 255, 0.15);
}

.speaker-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
  opacity: 0.5;
  filter: grayscale(0.4);
}

.speaker-card .role {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.5rem;
}

.speaker-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.speaker-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
}

/* Sponsor tiers */
.sponsor-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sponsor-list li {
  padding: 0.65rem 0;
  padding-left: 1.75rem;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.volunteer-roles {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.volunteer-roles li {
  padding: 0.75rem 1rem;
  background: var(--gray);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 0.95rem;
}

.volunteer-roles li::before {
  content: "◆ ";
  color: var(--orange);
}

.sponsor-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* Ticket page */
.ticket-cta-box {
  background: linear-gradient(160deg, rgba(242, 101, 34, 0.15), var(--gray));
  border: 2px solid var(--orange);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
}

.ticket-cta-box h2 {
  margin-bottom: 0.5rem;
}

.ticket-url {
  display: inline-block;
  margin: 1.25rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 700;
  color: var(--white);
  word-break: break-all;
}

.ticket-url:hover {
  color: var(--orange);
}

.notice {
  padding: 1rem 1.25rem;
  background: rgba(242, 101, 34, 0.12);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
}

.notice strong {
  color: var(--orange);
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

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

.contact-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--gray);
  border-radius: var(--radius);
}

.contact-card svg {
  color: var(--orange);
  flex-shrink: 0;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  background: var(--gray);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--white);
  font-family: var(--font);
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--orange);
}

.contact-form label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: rgba(255, 255, 255, 0.8);
}

.honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.form-status {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
  line-height: 1.5;
}

.form-status--success {
  background: rgba(76, 175, 80, 0.15);
  border: 1px solid rgba(76, 175, 80, 0.45);
  color: #a5d6a7;
}

.form-status--error {
  background: rgba(242, 101, 34, 0.12);
  border: 1px solid rgba(242, 101, 34, 0.45);
  color: #ffccbc;
}

.contact-form button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Flyer preview */
.flyer-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer */
.site-footer {
  background: var(--black-soft);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 3rem 0 1.5rem;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

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

.footer-brand img {
  height: 48px;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
}

.footer-links h4,
.footer-social h4 {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0.5rem;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

/* Schedule */
.schedule-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.schedule-list li {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.schedule-list .time {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--orange);
}

@media (max-width: 500px) {
  .schedule-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}