/* Proper section transitions - purposeful motion and visual flow */

/* Responsive vertical rhythm using clamp */
#hero {
    padding: clamp(100px, 15vh, 160px) 24px clamp(80px, 12vh, 120px) !important;
}

#demo-section {
    padding: clamp(80px, 12vh, 120px) 24px !important;
    margin-top: clamp(-60px, -8vh, -40px);
}

#tech {
    padding: clamp(80px, 12vh, 120px) 24px !important;
    margin-top: clamp(-40px, -5vh, -20px);
}

#download {
    padding: clamp(80px, 12vh, 120px) 24px !important;
    margin-top: clamp(-30px, -4vh, -15px);
}

/* Color flow through opacity layering */
section {
    position: relative;
    z-index: 1;
}

/* Hero establishes base with subtle fade at bottom */
#hero {
    position: relative;
    z-index: 3;
}

#hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: clamp(80px, 12vh, 140px);
    background: linear-gradient(180deg,
        transparent 0%,
        rgba(12, 10, 9, 0.5) 50%,
        rgba(12, 10, 9, 0.9) 100%
    );
    pointer-events: none;
    z-index: 1;
}

/* Demo sits behind with elevated z-index on container */
#demo-section {
    position: relative;
    z-index: 2;
}

#demo-container {
    position: relative;
    z-index: 10;
}

/* Tech recedes with lower opacity accent */
#tech {
    position: relative;
    z-index: 1;
}

#tech::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: clamp(100px, 15vh, 180px);
    background: radial-gradient(ellipse 70% 60% at 50% 0%,
        rgba(45, 212, 191, 0.02) 0%,
        transparent 70%
    );
    pointer-events: none;
}

/* Download section with subtle top border emphasis */
#download {
    position: relative;
    z-index: 2;
    border-top: 1px solid rgba(45, 212, 191, 0.08);
}

#download::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(200px, 40%, 500px);
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(45, 212, 191, 0.4) 50%,
        transparent 100%
    );
}

/* Depth through box-shadow on key elements */
#demo-container {
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(45, 212, 191, 0.05);
}

.tech-card {
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.download-card {
    box-shadow:
        0 4px 16px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(45, 212, 191, 0.08);
}

/* Smooth purposeful transitions */
section,
#demo-container,
.tech-card,
.download-card {
    transition: transform 0.6s cubic-bezier(0, 1, 0.5, 1);
}

/* Hover states add depth */
#demo-container:hover {
    transform: translateY(-4px);
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(45, 212, 191, 0.12);
}

.tech-card:hover {
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(45, 212, 191, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.download-card:hover {
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(45, 212, 191, 0.15);
}

/* Remove old spacing overrides that conflict */
#hero,
#demo-section,
#tech,
#download {
    padding-top: revert !important;
    padding-bottom: revert !important;
    margin-top: revert;
}

/* Apply new spacing */
#hero {
    padding: clamp(100px, 15vh, 160px) 24px clamp(80px, 12vh, 120px) !important;
    margin: 0;
}

#demo-section {
    padding: clamp(80px, 12vh, 120px) 24px !important;
    margin-top: clamp(-60px, -8vh, -40px);
}

#tech {
    padding: clamp(80px, 12vh, 120px) 24px !important;
    margin-top: clamp(-40px, -5vh, -20px);
}

#download {
    padding: clamp(80px, 12vh, 120px) 24px clamp(100px, 15vh, 140px) !important;
    margin-top: clamp(-30px, -4vh, -15px);
}

/* Responsive */
@media (max-width: 768px) {
    #hero {
        padding: 100px 20px 80px !important;
    }

    #demo-section {
        padding: 60px 20px !important;
        margin-top: -40px;
    }

    #tech {
        padding: 60px 20px !important;
        margin-top: -20px;
    }

    #download {
        padding: 60px 20px 80px !important;
        margin-top: -15px;
    }
}