/* Wong Lab Stylesheet - Ultra-Minimalist Video-Centric Theme */

/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
    --color-bg-deep: #020204;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0aec0;
    --color-cyan: #00f2fe;
    --color-cyan-glow: rgba(0, 242, 254, 0.35);
    --color-glass: rgba(10, 12, 22, 0.5);
    --border-glass: 1px solid rgba(255, 255, 255, 0.08);
    --border-glass-hover: 1px solid rgba(0, 242, 254, 0.3);
    --radius-lg: 16px;
    --radius-sm: 4px;
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* ==========================================================================
   Reset & Container Configuration
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: var(--color-bg-deep);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Full-Screen Video Backdrop
   ========================================================================== */
.video-background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    overflow: hidden;
}

#bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Cinematic overlay: strong dark radial vignette + dark bottom fade */
    background: 
        radial-gradient(circle, rgba(2, 2, 4, 0.25) 0%, rgba(2, 2, 4, 0.85) 100%),
        linear-gradient(to bottom, transparent 75%, var(--color-bg-deep) 100%);
}

/* ==========================================================================
   Minimal Layout Wrapper
   ========================================================================== */
.minimal-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 4rem;
    box-sizing: border-box;
    position: relative;
    z-index: 10;
}

/* ==========================================================================
   Branding Header
   ========================================================================== */
.brand-header {
    animation: fade-in-down 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.logo-accent {
    color: var(--color-cyan);
    margin-right: 0.6rem;
    text-shadow: 0 0 12px var(--color-cyan-glow);
}

.logo-light {
    font-weight: 300;
    color: var(--color-text-secondary);
}

.tagline {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    color: var(--color-text-secondary);
    opacity: 0.8;
}

/* ==========================================================================
   Bottom Contact Card
   ========================================================================== */
.contact-footer {
    display: flex;
    justify-content: center;
    width: 100%;
    animation: fade-in-up 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.glass-card {
    background: var(--color-glass);
    border: var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 242, 254, 0.05);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.inquiry-card {
    display: flex;
    align-items: center;
    padding: 1rem 1.8rem;
    gap: 2rem;
    max-width: 750px;
    width: 100%;
    justify-content: space-between;
}

.inquiry-card:hover {
    border: var(--border-glass-hover);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 242, 254, 0.15);
}

.inquiry-text {
    font-size: 0.95rem;
    color: var(--color-text-primary);
    font-weight: 400;
    line-height: 1.2;
}

.email-icon {
    color: var(--color-cyan);
    margin-right: 0.6rem;
    text-shadow: 0 0 8px var(--color-cyan-glow);
}

.inquiry-email {
    font-family: var(--font-heading);
    color: var(--color-cyan);
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.03em;
    transition: all 0.3s ease;
    text-shadow: 0 0 8px var(--color-cyan-glow);
    margin-left: 0.25rem;
}

.inquiry-email:hover {
    color: #ffffff;
    text-shadow: 0 0 12px #ffffff;
}

.copy-btn {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid var(--color-cyan);
    color: var(--color-cyan);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.copy-btn:hover {
    background: var(--color-cyan);
    color: #000000;
    box-shadow: 0 0 15px var(--color-cyan);
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fade-in-down {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Responsive Configuration
   ========================================================================== */
@media (max-width: 768px) {
    .minimal-wrapper {
        padding: 2rem;
    }

    .brand-header {
        text-align: center;
    }

    .logo {
        justify-content: center;
        font-size: 1.5rem;
    }

    .tagline {
        font-size: 0.6rem;
    }

    .inquiry-card {
        flex-direction: column;
        gap: 1.2rem;
        padding: 1.5rem;
        text-align: center;
    }

    .inquiry-text {
        font-size: 0.85rem;
    }

    .copy-btn {
        width: 100%;
        justify-content: center;
        padding: 0.7rem;
    }
}