/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--color-gray-900);
    color: var(--color-white);
    border-bottom: 4px solid var(--color-primary);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.header-inner {
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.site-logo svg {
    color: var(--color-primary);
    fill: currentColor;
    width: 28px;
    height: 28px;
}

.site-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.site-logo-name {
    font-size: 1.25rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.025em;
}

.site-logo-tagline {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-400);
}

.main-nav {
    display: none;
}

@media (min-width: 768px) {
    .main-nav {
        display: flex;
        align-items: center;
        gap: 0.25rem;
    }
}

.nav-link {
    padding: 0.5rem 1rem;
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-400);
    transition: all 0.2s;
    background: transparent;
    border: none;
}

.nav-link:hover,
.nav-link--active {
    color: var(--color-white);
    background: var(--color-gray-800);
}

.nav-link--active {
    border-bottom: 2px solid var(--color-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.quote-cart-btn {
    position: relative;
    padding: 0.5rem;
    color: var(--color-gray-300);
    background: transparent;
    border: none;
    transition: color 0.2s;
}

.quote-cart-btn:hover {
    color: var(--color-white);
}

.quote-cart-btn__inner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quote-cart-btn__label {
    display: none;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

@media (min-width: 640px) {
    .quote-cart-btn__label {
        display: block;
    }
}

.quote-cart-btn:hover .quote-cart-btn__label {
    color: var(--color-primary);
}

.quote-cart-count {
    position: absolute;
    top: -0.25rem;
    right: -0.25rem;
    width: 1.25rem;
    height: 1.25rem;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-gray-900);
    border-radius: 50%;
}

.mobile-menu-toggle {
    display: block;
    padding: 0.5rem;
    color: var(--color-white);
    background: transparent;
    border: none;
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-gray-800);
    border-bottom: 1px solid var(--color-gray-700);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    z-index: 50;
}

.mobile-menu--open {
    display: block;
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

.mobile-nav-link {
    display: block;
    width: 100%;
    text-align: left;
    padding: 1rem 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-300);
    border: none;
    border-bottom: 1px solid var(--color-gray-700);
    background: transparent;
}

.mobile-nav-link--active {
    color: var(--color-primary);
    background: var(--color-gray-900);
}

/* Hero Section */
.hero {
    position: relative;
    background: var(--color-gray-900);
    color: var(--color-white);
    border-bottom: 8px solid var(--color-primary);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40"><path d="M0 40L40 0M-10 10L10 -10M30 50L50 30" stroke="%23fff" stroke-width="1"/></svg>');
}

.hero-inner {
    position: relative;
    z-index: 10;
    padding: 6rem 0;
}

@media (min-width: 768px) {
    .hero-inner {
        padding: 8rem 0;
    }
}

.hero-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-badge {
    display: inline-block;
    align-self: flex-start;
    background: var(--color-primary);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    font-style: italic;
    line-height: 1;
    margin: 0;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.hero-title-gradient {
    background: linear-gradient(to right, var(--color-gray-100), var(--color-gray-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-400);
    font-weight: 500;
    max-width: 32rem;
    border-left: 4px solid var(--color-gray-700);
    padding-left: 1.5rem;
    margin: 0;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 1rem;
}

@media (min-width: 640px) {
    .hero-actions {
        flex-direction: row;
    }
}

.hero-image-wrapper {
    display: none;
    position: relative;
}

@media (min-width: 768px) {
    .hero-image-wrapper {
        display: block;
    }
}

.hero-image-frame {
    position: absolute;
    inset: -1rem;
    border: 4px solid var(--color-gray-800);
    transform: rotate(3deg);
}

.hero-image {
    position: relative;
    z-index: 10;
    width: 100%;
    height: auto;
    border: 4px solid var(--color-white);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    filter: grayscale(100%);
    transition: filter 0.5s ease;
}

.hero-image:hover {
    filter: grayscale(0%);
}

/* Metrics Strip */
.metrics {
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-300);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-left: 1px solid var(--color-gray-300);
    border-right: 1px solid var(--color-gray-300);
}

@media (min-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.metric-item {
    padding: 1.5rem;
    text-align: center;
    border-right: 1px solid var(--color-gray-300);
    transition: background 0.2s;
}

.metric-item:last-child {
    border-right: none;
}

.metric-item:hover {
    background: var(--color-gray-200);
}

.metric-value {
    font-size: 1.875rem;
    font-weight: 900;
    font-style: italic;
    color: var(--color-gray-900);
}

.metric-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}