/* ===== GLASSMORPHISM CARDS ===== */
.card {
    background: linear-gradient(135deg,
            rgba(15, 31, 29, 0.6) 0%,
            rgba(10, 21, 20, 0.8) 100%);
    backdrop-filter: blur(24px);
    border: 1px solid rgba(94, 234, 212, 0.2);
    border-radius: 1.5rem;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease-premium);
}

/* Inner glow at top */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(94, 234, 212, 0.5) 50%,
            transparent 100%);
    opacity: 0;
    transition: opacity 0.4s;
}

/* Subtle gradient overlay */
.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top left,
            rgba(94, 234, 212, 0.05) 0%,
            transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(94, 234, 212, 0.4);
    box-shadow:
        0 0 60px rgba(0, 255, 255, 0.15),
        0 20px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    background: linear-gradient(135deg,
            rgba(15, 31, 29, 0.7) 0%,
            rgba(13, 61, 56, 0.4) 100%);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 4rem;
    height: 4rem;
    margin-bottom: 2rem;
    padding: 0.75rem;
    background: rgba(20, 184, 166, 0.1);
    border-radius: 1rem;
    border: 1px solid rgba(94, 234, 212, 0.2);
    color: var(--bright-teal);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--white-teal);
}

.card-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-dim);
    opacity: 0.85;
}

/* ===== MATERIALS CARDS ===== */
.material-card {
    background: rgba(10, 21, 20, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(94, 234, 212, 0.2);
    border-radius: 1.25rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s var(--ease-smooth);
}

.material-card:hover {
    border-color: var(--core-teal);
    box-shadow: var(--glow-sm);
    transform: translateY(-4px);
}

.material-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white-teal);
    margin-bottom: 0.75rem;
}

.material-desc {
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.material-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-icon {
    padding: 0.625rem;
    background: rgba(13, 61, 56, 0.5);
    border: 1px solid rgba(94, 234, 212, 0.2);
    border-radius: 0.75rem;
    color: var(--text-muted);
    transition: all 0.3s var(--ease-premium);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(20, 184, 166, 0.2);
    border-color: var(--bright-teal);
    color: var(--bright-teal);
    box-shadow: var(--glow-sm);
    transform: scale(1.1) rotate(5deg);
}

.btn-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* ===== CONTACT CARDS ===== */
.contact-card {
    background: rgba(10, 21, 20, 0.5);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(94, 234, 212, 0.2);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: all 0.3s var(--ease-smooth);
}

.contact-card:hover {
    border-color: var(--core-teal);
    box-shadow: var(--glow-sm);
}

.contact-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
}

.contact-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.contact-text {
    font-family: 'Courier New', monospace;
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ===== GRID LAYOUTS ===== */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-bottom: 6rem;
}

/* ===== SECTION SPACING ===== */
section {
    padding: 8rem 0;
    position: relative;
    z-index: 2;
}

section:first-of-type {
    padding-top: 0;
}

section:not(:last-of-type)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(80%, 600px);
    height: 1px;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(94, 234, 212, 0.2) 50%,
            transparent 100%);
}

.section-title {
    text-align: center;
    margin-bottom: 5rem;
}

/* Responsive */
@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }

    .grid-3 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card {
        padding: 2rem;
    }
}