/* 
   Conquerblocks Design System 
   Focus: Premium, Tech-Driven, High-Contrast
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@600;700;800&display=swap');

:root {
    /* Colors */
    --primary-bg: #FFFFFF;
    --dark-bg: #111111;
    --dark-accent: #1D1D1D;
    --text-dark: #1D1D1D;
    --text-light: #FFFFFF;
    --accent-blue: #7F56D9;
    --accent-indigo: #3538CD;
    --gradient-start: #77B4D8;
    --gradient-end: #BAE0A3;
    --header-bg: rgba(255,255,255,0.8);
    
    /* Spacing */
    --section-padding: 100px 5%;
    --card-radius: 12px;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--primary-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* Utils */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.gradient-text {
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-primary {
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-dark);
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(119, 180, 216, 0.3);
}

/* Sections */
section {
    padding: var(--section-padding);
}

.dark-section {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

/* Hero */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    display: none; /* Removed background photo */
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    line-height: 1.1;
    color: var(--text-light); /* Fixed contrast */
}

/* Sections */
.intro-manifesto {
    padding: 120px 40px;
    background: #fdfdfd;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    text-align: center;
}

.intro-manifesto h2 {
    font-size: 3rem;
    max-width: 900px;
    margin: 0 auto 30px;
    line-height: 1.2;
}

.intro-manifesto p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    color: #555;
    line-height: 1.8;
}

/* Session Cards */
.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.session-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    padding: 30px;
    border-radius: var(--card-radius);
    transition: all 0.3s ease;
    cursor: default;
}

.session-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
    border-color: var(--gradient-start);
}

.session-card .number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--gradient-start);
    margin-bottom: 8px;
    display: block;
}

.session-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.session-card p {
    color: #6B7280;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --section-padding: 50px 20px;
    }
    
    .container {
        padding: 0 20px;
    }

    .intro-manifesto {
        padding: 80px 20px;
    }

    .intro-manifesto h2 {
        font-size: 2rem;
    }

    .intro-manifesto p {
        font-size: 1.1rem;
    }
    
    .hero {
        height: auto;
        padding: 100px 20px;
    }

    .hero h1 {
        font-size: 2.2rem;
        line-height: 1.2;
    }
    
    .hero p {
        font-size: 1rem !important;
        margin-bottom: 30px !important;
    }

    h2 {
        font-size: 1.8rem !important;
    }

    .container {
        padding: 0;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    header nav {
        padding: 15px 20px !important;
    }

    .nav-links {
        display: none;
    }

    .sessions-grid {
        gap: 20px;
        margin-top: 30px;
    }

    .session-card {
        padding: 20px;
    }

    #instructor {
        padding: 60px 20px !important;
        gap: 40px !important;
    }

    #instructor h2 {
        font-size: 2.2rem !important;
    }
}