/* =================================================================
   RE//FORGE SF - Attendee Page
   Clean, Premium, Modern Design
   Black / White / Electric Blue
================================================================= */

:root {
    --black: #000000;
    --charcoal: #0A0A0A;
    --dark-gray: #1A1A1A;
    --mid-gray: #2A2A2A;
    --electric-blue: #2BD9FF;
    --blue-hover: #00B8E6;
    --silver: #C6C6C6;
    --light-gray: #8A8A8A;
    --white: #FFFFFF;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--black);
    color: var(--silver);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
}

.section-intro {
    text-align: center;
    font-size: 1.15rem;
    color: var(--silver);
    max-width: 700px;
    margin: 0 auto 4rem;
    line-height: 1.8;
}

/* =================================================================
   HERO SECTION
================================================================= */
.attendee-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10rem 2rem 6rem;
    overflow: hidden;
    background: var(--black);
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(43, 217, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(43, 217, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    animation: gridPulse 15s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.5; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-video-container {
    max-width: 550px;
    margin: 0 auto 2.5rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(43, 217, 255, 0.2);
    border: 1px solid rgba(43, 217, 255, 0.2);
    transition: all 0.3s ease;
}

.hero-video-container:hover {
    box-shadow: 0 15px 50px rgba(43, 217, 255, 0.3);
    transform: translateY(-2px);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-date {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--electric-blue);
    font-weight: 600;
    margin-bottom: 2rem;
    letter-spacing: 0.01em;
}

.hero-description {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--silver);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.hero-statement {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: var(--light-gray);
    margin-bottom: 3rem;
    line-height: 1.8;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* =================================================================
   BUTTONS
================================================================= */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--electric-blue);
    color: var(--black);
    border: none;
    box-shadow: 0 4px 20px rgba(43, 217, 255, 0.3);
}

.btn-primary:hover {
    background: var(--blue-hover);
    box-shadow: 0 6px 30px rgba(43, 217, 255, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--mid-gray);
}

.btn-secondary:hover {
    background: var(--dark-gray);
    border-color: var(--electric-blue);
    color: var(--electric-blue);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.15rem;
}

/* =================================================================
   SECTION 2: What is RE//FORGE?
================================================================= */
.what-is-section {
    background: var(--charcoal);
}

.what-is-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.lead-text {
    font-size: 1.4rem;
    line-height: 1.8;
    color: var(--white);
    font-weight: 500;
    margin-bottom: 2rem;
}

.body-text {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--silver);
    margin-bottom: 1.5rem;
}

.body-text.highlight {
    color: var(--white);
    font-weight: 600;
    margin-top: 2rem;
}

/* =================================================================
   SECTION 3: Who Should Attend
================================================================= */
.who-section {
    background: var(--black);
}

.who-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.who-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    background: var(--charcoal);
    border: 1px solid var(--mid-gray);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.who-card:hover {
    border-color: var(--electric-blue);
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(43, 217, 255, 0.15);
}

.who-card i {
    font-size: 1.75rem;
    color: var(--electric-blue);
    min-width: 30px;
}

.who-card span {
    font-size: 1.05rem;
    color: var(--white);
    font-weight: 600;
}

/* =================================================================
   SECTION 4: How to Experience RE//FORGE
================================================================= */
.how-section {
    background: var(--charcoal);
}

.schedule-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.schedule-day {
    padding: 2.5rem 2rem;
    background: var(--dark-gray);
    border: 1px solid var(--mid-gray);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.schedule-day.featured {
    border-color: var(--electric-blue);
    background: rgba(43, 217, 255, 0.05);
}

.schedule-day:hover {
    border-color: var(--electric-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(43, 217, 255, 0.2);
}

.day-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(43, 217, 255, 0.15);
    color: var(--electric-blue);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
}

.schedule-day h3 {
    font-size: 1.4rem;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.schedule-day p {
    font-size: 1rem;
    color: var(--silver);
    line-height: 1.6;
}

/* =================================================================
   SECTION 5: Event Calendar (Luma Embed)
================================================================= */
.calendar-section {
    background: var(--black);
}

.calendar-embed-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    position: relative;
}

.calendar-embed-wrapper iframe {
    max-width: 100%;
    width: 600px;
    height: 450px;
    display: block;
    pointer-events: auto;
}

.calendar-cta {
    text-align: center;
}

.calendar-cta .btn-primary {
    min-width: 280px;
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

/* =================================================================
   SECTION 6: Why This Week Matters
================================================================= */
.why-section {
    background: var(--charcoal);
}

.why-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* =================================================================
   SECTION 7: Final CTA
================================================================= */
.final-cta-section {
    background: var(--black);
    padding: 10rem 0;
}

.final-cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.final-cta-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--white);
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.final-cta-text {
    font-size: 1.25rem;
    color: var(--silver);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.final-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* =================================================================
   FOOTER
================================================================= */
.footer-minimal {
    background: var(--charcoal);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--mid-gray);
}

.footer-content {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.footer-logo span {
    color: var(--electric-blue);
    font-weight: 300;
}

.footer-tagline {
    font-size: 1rem;
    color: var(--silver);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--mid-gray);
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--light-gray);
}

/* =================================================================
   RESPONSIVE DESIGN
================================================================= */
@media (max-width: 768px) {
    .section {
        padding: 5rem 0;
    }

    .attendee-hero {
        padding: 8rem 1.5rem 4rem;
        min-height: auto;
    }

    .hero-video-container {
        margin-bottom: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        min-height: 48px;
        font-size: 1.05rem;
    }

    .who-grid {
        grid-template-columns: 1fr;
    }

    .schedule-overview {
        grid-template-columns: 1fr;
    }

    .calendar-embed-wrapper {
        padding: 0 1rem;
    }

    .calendar-embed-wrapper iframe {
        width: 100%;
        height: 400px;
    }

    .calendar-cta .btn-primary {
        width: 100%;
        min-height: 56px;
        font-size: 1.1rem;
        padding: 1.25rem 2rem;
    }

    .final-cta-section {
        padding: 6rem 0;
    }

    .final-cta-buttons {
        flex-direction: column;
    }

    .final-cta-buttons .btn-primary {
        width: 100%;
        min-height: 56px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 1.85rem;
    }

    .lead-text {
        font-size: 1.15rem;
    }
}

/* =================================================================
   SMOOTH ANIMATIONS
================================================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}