:root {
    --bg: #000000;
    --aluminum: linear-gradient(to bottom, #ffffff 0%, #e5e5e7 40%, #8e8e93 50%, #d1d1d6 60%, #ffffff 100%);
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    background-color: var(--bg);
    color: #e5e5e7;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
    overflow-x: hidden;
}

.hero { height: 400vh; position: relative; }

.canvas-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 5;
    pointer-events: none;
}

#aperture-canvas { max-width: 500px; width: 80%; opacity: 0.6; }

.hero-content {
    position: fixed;
    top: 25%;
    width: 100%;
    text-align: center;
    z-index: 10;
}

#title {
    font-size: clamp(2rem, 9vw, 6.5rem);
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    background: var(--aluminum);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 12px rgba(255,255,255,0.1));
}

.tagline {
    font-size: 0.8rem;
    letter-spacing: 0.5em;
    margin-top: 20px;
    opacity: 0.4;
    text-transform: uppercase;
}

.features {
    padding: 20vh 5vw;
    z-index: 20;
    position: relative;
    background: linear-gradient(to bottom, transparent, #000 15%);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--glass);
    backdrop-filter: blur(35px);
    -webkit-backdrop-filter: blur(35px);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 20px;
}

.card.full-width { grid-column: 1 / -1; }

.dual-advantage {
    margin: 2rem 0;
    padding: 1.5rem;
    border-left: 1px solid var(--glass-border);
    background: rgba(255,255,255,0.01);
}

.dual-advantage p { margin-bottom: 1rem !important; }

.emphasis {
    font-weight: 600;
    color: #fff;
    font-size: 1.1rem;
    margin-top: 1.5rem;
}

.glass h3 { color: #fff; margin-bottom: 1rem; font-size: 1.4rem; }
.glass p { color: #a1a1a6; line-height: 1.6; font-size: 1rem; }

/* Perfect Button Centering */
.cta { 
    padding: 15vh 0 25vh; 
    position: relative; 
    z-index: 20; 
}

.cta-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.app-store-btn {
    background: #fff;
    color: #000;
    padding: 1.5rem 4rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.app-store-btn:hover { transform: scale(1.05); }