/* F3L Contest Series - Main Stylesheet */

:root {
  --sky-blue: #2b7de9;
  --deep-blue: #1a4d8f;
  --light-blue: #e3f2fd;
  --accent-blue: #4a9eff;
  --white: #ffffff;
  --off-white: #f8f9fa;
  --text-dark: #1a1a1a;
  --text-gray: #555555;
  --border-color: #d1e3f8;
  --shadow: rgba(43, 125, 233, 0.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: linear-gradient(to bottom, var(--white) 0%, var(--light-blue) 100%);
  min-height: 100vh;
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--sky-blue) 100%);
  color: var(--white);
  padding: 1.5rem 2rem;
  box-shadow: 0 4px 12px var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

nav a {
  color: var(--white);
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.1);
  font-weight: 500;
  display: inline-block;
}

nav a:hover,
nav a.active {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* Banner Image */
.banner-image {
  width: 100%;
  overflow: hidden;
  max-height: 400px;
  position: relative;
}

.banner-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 400px;
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.content-card {
  background: var(--white);
  border-radius: 12px;
  padding: 2.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border-left: 4px solid var(--sky-blue);
}

h2 {
  color: var(--deep-blue);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

h3 {
  color: var(--sky-blue);
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
  color: var(--text-gray);
  line-height: 1.7;
}

/* Links */
a {
  color: var(--sky-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--deep-blue);
  text-decoration: underline;
}

/* Buttons & CTAs */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: var(--sky-blue);
  color: var(--white);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--shadow);
}

.btn:hover {
  background: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow);
  text-decoration: none;
}

.btn-secondary {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  background: var(--sky-blue);
  color: var(--white);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--shadow);
}

.btn-secondary:hover {
  background: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow);
  text-decoration: none;
}

/* Event Cards */
.event-card {
  background: var(--off-white);
  border-left: 4px solid var(--accent-blue);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.event-card:hover {
  background: var(--white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateX(8px);
}

.event-date {
  color: var(--sky-blue);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.event-title {
  color: var(--deep-blue);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.event-location {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* YouTube Embeds */
.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 1.5rem 0;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 8px;
}

/* Resource Links */
.resource-list {
  list-style: none;
  margin: 1rem 0;
}

.resource-list li {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  position: relative;
}

.resource-list li:before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--sky-blue);
  font-weight: bold;
}

.resource-list a {
  font-weight: 500;
}

/* Download Links */
.download-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background: var(--light-blue);
  color: var(--deep-blue);
  border-radius: 8px;
  margin: 0.5rem 0.5rem 0.5rem 0;
  transition: all 0.3s ease;
  font-weight: 500;
  text-decoration: none;
}

.download-link:hover {
  background: var(--sky-blue);
  color: var(--white);
  transform: translateY(-2px);
  text-decoration: none;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: var(--light-blue);
  color: var(--deep-blue);
  font-weight: 600;
}

tr:hover {
  background: var(--off-white);
}

/* Image Placeholders */
.image-placeholder {
  background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 3rem;
  text-align: center;
  color: var(--text-gray);
  margin: 1.5rem 0;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--sky-blue) 100%);
  color: var(--white);
  padding: 3rem 2.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  text-align: center;
  box-shadow: 0 8px 24px var(--shadow);
}

.hero h2 {
  color: var(--white);
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

/* Footer */
footer {
  background: var(--deep-blue);
  color: var(--white);
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

footer p {
  color: rgba(255, 255, 255, 0.8);
}

/* Responsive Design */
@media (max-width: 768px) {
  header {
    padding: 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  nav ul {
    gap: 0.3rem;
  }

  nav a {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
  }

  main {
    padding: 0 1rem;
  }

  .content-card {
    padding: 1.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .hero {
    padding: 2rem 1.5rem;
  }

  .hero h2 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  table {
    font-size: 0.9rem;
  }

  th, td {
    padding: 0.7rem;
  }
}

@media (max-width: 480px) {
  nav ul {
    flex-direction: column;
  }

  nav a {
    text-align: center;
    width: 100%;
  }

  .event-card:hover {
    transform: translateX(0);
  }
}

/* Tabs for Results Page */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
}

.tab-button {
  padding: 0.8rem 1.5rem;
  background: transparent;
  color: var(--text-gray);
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.tab-button:hover {
  color: var(--sky-blue);
}

.tab-button.active {
  color: var(--deep-blue);
  border-bottom-color: var(--sky-blue);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.standings-iframe {
  width: 100%;
  height: 800px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--white);
}

/* Content Images */
.content-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin: 1.5rem auto;
  display: block;
}

.content-image-small {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin: 1.5rem auto;
  display: block;
}

.image-caption {
  text-align: center;
  font-style: italic;
  color: var(--text-gray);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.image-grid img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .tabs {
    flex-direction: column;
    gap: 0;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}

  .tab-button {
    width: 100%;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
  }

  .tab-button.active {
    background: var(--light-blue);
    border-left: 4px solid var(--sky-blue);
  }

  .standings-iframe {
    height: 600px;
  }
}