/* ==========================================================================
   Components - Reusable UI Elements
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-family: inherit;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-default);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-sm {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-5) var(--space-10);
    font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-6) var(--space-16);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: var(--z-fixed);
    transition: background var(--transition-base), padding var(--transition-base);
}

.nav.scrolled {
    background: rgba(2, 10, 14, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-4) var(--space-16);
}

.nav-logo img {
    height: 36px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-10);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--text-muted);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-dropdown-trigger svg {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-base);
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    padding: var(--space-4);
    background: rgba(2, 10, 14, 0.98);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-item {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--text-muted);
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
    color: var(--text-primary);
    background: var(--bg-dark-hover);
}

.nav-cta {
    padding: var(--space-3) var(--space-6);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--bg-dark);
    font-weight: var(--font-semibold);
    transition: all var(--transition-base);
}

.nav-cta:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-2);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* Mobile Menu */
.nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-dark);
    padding: var(--space-24) var(--space-8);
    z-index: var(--z-modal);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
}

.nav-mobile.active {
    transform: translateX(0);
}

.nav-mobile-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.nav-mobile-link {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.nav-mobile-close {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-mobile-close svg {
    width: 24px;
    height: 24px;
    stroke: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    position: relative;
    padding: var(--space-10);
    background: var(--bg-dark-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-slow);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(82, 182, 154, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

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

.card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-6);
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-slow);
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--bg-dark);
    stroke-width: 2;
    fill: none;
}

.card-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.card-description {
    margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    position: relative;
    z-index: var(--z-base);
    padding: var(--space-16) var(--space-16) var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-16);
    margin-bottom: var(--space-16);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo img {
    height: 32px;
    width: auto;
    margin-bottom: var(--space-6);
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-column h4,
.footer-heading {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    color: var(--text-muted);
    font-size: var(--text-sm);
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--text-subtle);
}

.footer-contact {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.footer-contact a {
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .nav {
        padding: var(--space-4) var(--space-8);
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-mobile {
        display: block;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-10);
    }

    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 640px) {
    .nav {
        padding: var(--space-4) var(--space-6);
    }

    .section {
        padding: var(--space-16) 0;
    }

    .container {
        padding: 0 var(--space-6);
    }

    .footer {
        padding: var(--space-12) var(--space-6) var(--space-6);
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-brand {
        grid-column: span 1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}