/* ===== Autonomous Racing Team – Design System ===== */
:root {
  /* Colors */
  --bg-dark: #0a0a0f;
  --bg-card: #12121a;
  --bg-elevated: #1a1a24;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --accent: #e63946;
  --accent-hover: #ff4757;
  --accent-muted: rgba(230, 57, 70, 0.15);
  --border: rgba(255, 255, 255, 0.08);
  --white: #ffffff;

  /* Typography */
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;
  --leading-tight: 1.2;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Spacing & layout */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--accent-hover);
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
  }
}

/* ===== Header & Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-weight: 700;
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.logo span {
  color: var(--accent);
}

.nav-desktop {
  display: none;
}
@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
  }
}
.nav-desktop a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.nav-desktop a:hover {
  color: var(--text-primary);
}
.nav-desktop a.btn-primary,
.nav-desktop a.btn-primary:hover,
.nav-mobile a.btn-primary,
.nav-mobile a.btn-primary:hover {
  color: #fff !important;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--white);
}

.btn-nav {
  padding: var(--space-sm) var(--space-md);
}

/* Mobile menu */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
}
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: var(--radius-full);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 99;
}
.nav-mobile.is-open {
  transform: translateX(0);
}
@media (min-width: 768px) {
  .nav-mobile {
    display: none;
  }
}
.nav-mobile a {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-primary);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-height);
  padding-bottom: var(--space-4xl);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(230, 57, 70, 0.18) 0%, transparent 55%),
    var(--bg-dark);
}

.hero .container {
  /* Make left/right spacing match the screenshot and push columns outward */
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-copy {
  min-width: 0;
  text-align: center;
}

.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: 0 0 var(--space-lg);
  font-size: clamp(var(--text-3xl), 5.5vw, var(--text-6xl));
  font-weight: 500;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--white);
}

.hero-title__line {
  display: block;
  white-space: nowrap;
  text-align: center;
  width: max-content;
  max-width: 100%;
}

.hero-title__line--accent {
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.hero-title__line--main {
  display: flex;
  flex-direction: column;
  align-items: center;
  white-space: normal;
  font-size: 0.88em;
  line-height: var(--leading-tight);
}

.hero-title__main-line {
  display: block;
  text-align: center;
  white-space: nowrap;
}

.hero-subhead {
  display: block;
  width: max-content;
  max-width: 100%;
  margin: 0 auto var(--space-md);
  white-space: nowrap;
  text-align: center;
  font-size: clamp(0.7rem, 2.35vw, var(--text-xl));
  font-weight: 500;
  line-height: var(--leading-snug);
  color: var(--white);
}

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

.hero-lede {
  margin: var(--space-md) auto var(--space-2xl);
  max-width: 20rem;
  font-size: var(--text-base);
  font-weight: 400;
  color: #b1b1c0;
  line-height: var(--leading-relaxed);
  text-align: center;
}

.hero-figure {
  margin: 0;
  min-width: 0;
  max-width: 100%;
}

.hero-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: min(85vh, 720px);
  margin: 0 auto;
  display: block;
  border-radius: 18px;
  object-fit: contain;
}

@media (min-width: 900px) {
  .hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    /* Larger separation between text column and photo */
    gap: 10rem;
  }

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

  .hero-subhead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-lede {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.hero-actions .btn {
  text-transform: uppercase;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.75rem 1.35rem;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

/* ===== Sections ===== */
.section {
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.section-header h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-header p {
  margin: 0;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary);
  font-size: var(--text-lg);
}

/* Cards grid */
.cards-grid {
  display: grid;
  gap: var(--space-lg);
}
@media (min-width: 640px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}
.card h3 {
  margin: 0 0 var(--space-sm);
  font-size: var(--text-xl);
  font-weight: 600;
}
.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* CTA strip */
.cta-strip {
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-strip h2 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-2xl);
  font-weight: 700;
}
.cta-strip p {
  margin: 0 0 var(--space-xl);
  color: var(--text-secondary);
}

/* ===== Footer ===== */
.site-footer {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-xl);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}
@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand .logo {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}
.footer-brand p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.footer-nav h4 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.footer-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-nav li {
  margin-bottom: var(--space-sm);
}
.footer-nav a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
}
.footer-nav a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}
.footer-bottom p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ===== Page content (inner pages) ===== */
.page {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
}

.page-title {
  margin: 0 0 var(--space-md);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-lead {
  margin: 0 0 var(--space-3xl);
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 640px;
}

.content-block {
  margin-bottom: var(--space-2xl);
}
.cards-grid + .content-block {
  margin-top: var(--space-3xl);
}
.content-block h2 {
  font-size: var(--text-2xl);
  margin: 0 0 var(--space-md);
  font-weight: 600;
}
.content-block h3 {
  font-size: var(--text-xl);
  margin: 0 0 var(--space-md);
  font-weight: 600;
}
.content-block p {
  margin: 0 0 var(--space-md);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}
.content-block p:last-child {
  margin-bottom: 0;
}
.content-block ul {
  margin: 0 0 var(--space-md);
  padding-left: 1.25rem;
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}
.content-block ul li {
  margin-bottom: var(--space-md);
}
.content-block ul li:last-child {
  margin-bottom: 0;
}
.content-block .link-list {
  list-style: none;
  padding-left: 0;
  margin-top: var(--space-md);
}
.content-block .link-list li {
  margin-bottom: var(--space-sm);
}
.content-block .link-list a {
  color: var(--accent);
}
.content-block .link-list a:hover {
  color: var(--accent-hover);
}
.content-block .mission-list {
  list-style: none;
  padding-left: 0;
}
.content-block .mission-list li {
  margin-bottom: var(--space-lg);
  padding-left: 0;
}
.content-block .mission-list li::before {
  content: "• ";
  color: var(--accent);
  font-weight: 700;
}

/* ===== Media blocks (image + text columns) ===== */
.media-block {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-4xl);
  align-items: center;
}
@media (min-width: 768px) {
  .media-block {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .media-block--reverse .media-block__content {
    order: -1;
  }
}
.media-block__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}
.media-block__media img {
  width: 100%;
  height: auto;
  display: block;
}
.media-block__content {
  min-width: 0;
}
.media-block__content h2 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-2xl);
  font-weight: 600;
}
.media-block__content .about-intro-lead,
.media-block__content .page-lead {
  margin: 0 0 var(--space-md) !important;
}
.media-block__content p {
  margin: 0 0 var(--space-md);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}
.media-block__content p:last-child {
  margin-bottom: 0;
}

/* Image grid (e.g. results gallery) – single column so each image has full width, no squeezing */
.image-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-2xl);
  grid-template-columns: 1fr;
}
.image-grid figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.image-grid figure img {
  width: 100%;
  height: auto;
  display: block;
}
.image-grid figcaption {
  padding: var(--space-md);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ===== About page ===== */
.about-page .page-title {
  margin-bottom: var(--space-2xl);
}

.about-intro {
  margin-bottom: var(--space-4xl);
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.about-intro-lead {
  font-size: var(--text-lg);
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-lg) !important;
}
.about-intro p:last-child {
  margin: 0 !important;
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.about-vision-mission {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
  margin-bottom: var(--space-4xl);
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}
.about-card h2 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-2xl);
  font-weight: 600;
}
.about-card p {
  margin: 0;
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.about-mission-wrap {
  max-width: 100%;
}
.about-mission-wrap h2.about-mission-title {
  margin: 0 0 var(--space-xl);
  font-size: var(--text-2xl);
  font-weight: 600;
}

.mission-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}
.mission-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: border-color 0.2s ease;
}
.mission-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}
.mission-card h3 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.mission-card p {
  margin: 0;
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.65;
}

.team-members-section {
  margin-bottom: var(--space-4xl);
}
.team-members-section .team-members-grid {
  margin-top: var(--space-2xl);
}
.team-members-photo {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-2xl);
}
.team-members-photo img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}
.team-members-section .section-heading {
  margin: 0 0 var(--space-sm);
  font-size: var(--text-2xl);
  font-weight: 600;
}
.team-members-intro {
  margin: 0 0 var(--space-2xl);
  color: var(--text-secondary);
}
.team-members-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 640px) {
  .team-members-grid {
    grid-template-columns: 1fr;
  }
}
.team-member {
  margin: 0;
  padding: 0;
  height: 100%;
}

.team-member-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: #16161d;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  transition: border-color 0.2s ease;
}
.team-member-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.team-member-card__photo {
  width: 160px;
  height: 160px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-elevated);
  margin: 0 0 var(--space-md);
}
.team-member-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-member-card__name {
  margin: 0 0 var(--space-xs);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
  line-height: var(--leading-snug);
}

.team-member-card__degree {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: 500;
  color: #e55050;
  line-height: var(--leading-snug);
}

.team-member-card__bio {
  margin: var(--space-lg) 0 0;
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 100%;
}

/* ===== Competitions page – race schedule ===== */
.race-schedule {
  margin-bottom: var(--space-3xl);
}
.race-schedule .section-heading {
  margin: 0 0 var(--space-xl);
  font-size: var(--text-2xl);
  font-weight: 600;
}
.race-list {
  list-style: none;
  margin: 0 0 var(--space-2xl);
  padding: 0;
}
.race-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: var(--text-lg);
}
.race-item:last-child {
  border-bottom: none;
}
.race-item strong {
  color: var(--text-primary);
  margin-right: var(--space-sm);
}
.upcoming-races {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}
.upcoming-races h3 {
  margin: 0 0 var(--space-md);
  font-size: var(--text-xl);
  font-weight: 600;
}
.upcoming-races p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--text-lg);
}

.about-cta {
  margin: 0;
  text-align: center;
}

/* Forms (contact) */
.form-group {
  margin-bottom: var(--space-lg);
}
.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea {
  min-height: 140px;
  resize: vertical;
}
.form-actions {
  margin-top: var(--space-xl);
}

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