:root {
  --orange: #fca311;
  --dark-blue: #14213D;
  --light-blue: #007ce0;
  --black: #000;
  --white: #fff;
  --grey: #e5e5e5;
  --bg-primary: #0a0a0a;
  --bg-secondary: #0f0f0f;
  --bg-card: #1a1a1a;
  --border-color: #2a2a2a;
}

#summit {
    font-family: 'Poppins', sans-serif;
    /* background-color: var(--black); */
    color: var(--white);
}

#main-header {
    background: url("../../assets/images/backgrounds/summit-bg.jpeg") no-repeat fixed center;
    background-size: cover;
    height: 70vh;
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 15px 0;
}

.section-title {
    color: var(--white);
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background-color: var(--orange);
}

/* Theme Hero Section */
.theme-hero {
    background-color: #14213D;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.theme-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
}

.theme-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
}

.theme-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
    text-align: center;
}

.theme-badge {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: rgba(0, 123, 224, 0.199);
    color: var(--light-blue);
    font-size: 0.8rem;
    border: #007ce0 2px solid;
    font-weight: 800;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 3rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.theme-title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 4rem;
    color: var(--orange);
    letter-spacing: -0.04em;
    text-transform: uppercase;
}

.theme-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--light-blue);
    line-height: 1;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* Info Cards */
.info-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);

    border-left: 6px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    /* box-shadow: 0 4px 6px rgba(252, 162, 17, 0.2); */
    -webkit-border-radius: 20px;
    -moz-border-radius: 20px;
    -ms-border-radius: 20px;
    -o-border-radius: 20px;
}

.card1:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(252, 162, 17, 0.3);
}

.card2:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(20, 30, 61, 0.3);
}

.card3:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 124, 224, 0.3);
}

.info-text {
    color: var(--white);
    font-weight: 500;
    margin-bottom: 10px;

}

.info-icon {
    width: 80px;
    height: 80px;
    background-color: var(--orange);
    color: var(--bg-primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.info-content h3 {
    color: var(--orange);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.info-content p {
    color: var(--white);
    font-size: 1.1rem;
    margin: 0;
}

.info-note {
    margin-top: 1.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--grey);
    font-size: 0.9rem;
    color: rgba(160, 160, 160, 0.7);
    font-style: italic;
}

/* Schedule Section */
.container-main {
    max-width: 800px;
    margin: 0 auto;
  }
  h1 {
    text-align: center;
    color: #fca311;
    margin-bottom: 2rem;
  }

  .nav-tabs {
    border-bottom: none;
    justify-content: center;
  }

  .nav-tabs .nav-link {
    padding: 1.3rem 2.5rem;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-left: 10px;
  }

  .nav-tabs .nav-link:hover {
    border-color: var(--orange);
    color: var(--orange);
    transform: translateY(-2px);
  }

  .nav-tabs .nav-link.active {
    background-color: var(--orange);
    border-color: var(--orange);
    color: var(--bg-primary);
  }

  .tab-content {
    animation: fadeIn 0.6s ease-in-out;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .schedule-box {
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    box-shadow: 0 0 10px #007be01a;
    border-radius: 24px;
    padding: 3rem;
    /* padding: 1.5rem; */
  }

  .time-slot {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 1rem;
    padding: 2rem;
    margin-bottom: 0.5rem;
    border-left: 4px solid transparent;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
  }

  .time-slot::after {
      content: '';
      position: absolute;
      right: 2rem;
      top: 50%;
      transform: translateY(-50%);
      width: 10px;
      height: 10px;
      background-color: var(--border-color);
      border-radius: 50%;
      transition: all 0.3s ease;
  }

  .time-slot:hover {
    background-color: rgba(0, 124, 224, 0.05);
    border-left-color: var(--light-blue);
    transform: translateX(8px);
  }

  .time-slot:hover::after {
    background-color: var(--light-blue);
    box-shadow: 0 0 20px var(--light-blue);
    transform: translateY(-50%) scale(1.3);
  }

  .time {
    color: var(--orange);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.01em;
  }

  .event-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
  }

  .event-detail {
    color: var(--text-secondary);
    font-size: 1rem;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
  }

  .time-slot:hover .event-detail {
        opacity: 1;
    max-height: 60px;
    margin-top: 0.5rem;
  }

  @media (max-width: 768px) {
    .time-slot {
      flex-direction: column;
      align-items: flex-start;
    }

    .time {
      width: 100%;
    }
  }

/* Handbook Section */
.handbook-wrapper {
    background: linear-gradient(135deg, #1a1a1a, #141414);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(252, 162, 17, 0.2);
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.handbook-pdf {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
}

    .venue-border {
      border-color: #fca311;
    }

    .date-border {
      border-color: #14213D;
    }
    
    .schedule-border {
      border-color: #007ce0;
    }

    /* .info-icon {
      width: 50px;
      height: 50px;
      margin-bottom: 20px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-left: auto;
      margin-right: auto;
      background-color: #f9f9f9;
    } */

    .info-card h5 {
      margin-top: 10px;
      margin-bottom: 15px;
      font-weight: 600;
    }

    .info-card p {
      color: #6c757d;
      margin-bottom: 0;
    }

#summit > h2 {
    text-align: center;
    text-decoration: underline;
    margin: 30px;
    color: #fff;
}

.info-section {
    display: flex;
    justify-content: space-around;
    flex-direction: row;
    align-items: center;
    padding: 20px 10px;
    margin: 10px;
    background-color: #000;
  }
  
.info-box {
    text-align: center;
    flex: 1;
    padding: 10px;
}

.info-box i {
    font-size: 36px;
    margin-bottom: 10px;
    color: #007ce0;
  }
  
  .info-box h3 {
    font-size: 18px;
    margin: 10px 0 5px;
    font-weight: bold;
    color: #fca311;
  }
  
  .info-box p {
    font-size: 14px;
    margin: 0;
    color: #ccc;
  }

  .schedule-container {
    background-color: #2c3e50;
    box-shadow: 5.5px 4.5px 0 #2c3a47;
    border-radius: 8px;
    padding: 20px;
    max-width: 600px;
    margin: 10px auto 10px;
    /* box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5); */
  }
  
  .schedule-header h2 {
    margin: 0;
    color: #007ce0;
  }
  
  .schedule-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
  }
  
  .schedule-table .event-row {
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .schedule-table .event-row:hover {
    background-color: #34495e;
  }
  
  .schedule-table td {
    padding: 10px;
    border-bottom: 1px solid #34495e;
    color: #fff;
  }
  
  .schedule-table td:first-child {
    width: 40%;
    color: #fca311;
  }
  
  .schedule-table .hidden-info {
    display: none;
    background-color: #34495e;
    color: #c5e4e8;
    font-size: 0.9rem;
    transition: all 0.2s ease;
  }
  
  .schedule-table .event-row:hover + .hidden-info {
    display: table-row;
    animation: expand 0.2s ease-in-out;
  }
  
  .schedule-note {
    margin-top: 15px;
    font-size: 0.9rem;
    color: #fca311;
    text-align: center;
  }
  
  @keyframes expand {
    from {
      opacity: 0;
      transform: scaleY(0);
    }
    to {
      opacity: 1;
      transform: scaleY(1);
    }
  }

#handbook {
    width: 100%;
    max-width: 800px;
    margin: 10px auto;
}

#handbook > h2 {
    color: white;
    text-decoration: underline;
    text-align: center;
    margin: 0 0 20px 0;
    font-size: 24px;
}

#handbook iframe {
    display: block;
    margin: 0 auto;
    width: 100%;
    height: 600px;
    border: none;
}