/* Shared Components */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--muted-brass);
    color: var(--midnight-navy);
    border-color: var(--warm-eng-gold);
}

.btn-primary:hover {
    background-color: var(--warm-eng-gold);
    box-shadow: 0 0 15px rgba(200, 162, 79, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--soft-metallic-gold);
    border-color: var(--line-color);
}

.btn-secondary:hover {
    border-color: var(--soft-metallic-gold);
    background-color: rgba(216, 185, 106, 0.05);
}

/* Section Structure */
.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 2;
    border-bottom: 1px solid var(--line-color);
    background-color: var(--midnight-navy);
}

.section-alt {
    background-color: var(--blueprint-navy);
}

/* Node Callouts */
.node-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--warm-eng-gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.node-label::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border: 1px solid var(--warm-eng-gold);
}

/* Spec Sheet Cards */
.spec-card {
    background-color: var(--deep-indigo);
    border: 1px solid var(--line-color);
    padding: 40px;
    position: relative;
    transition: border-color 0.3s ease;
}

.spec-card:hover {
    border-color: var(--muted-brass);
}

.spec-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--grid-gap);
    margin-top: 48px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: rgba(11, 29, 46, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-color);
    z-index: 100;
    padding: 16px 0;
}

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

.logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--systems-white);
    font-weight: 500;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo::before {
    content: '';
    display: block;
    width: 24px;
    height: 24px;
    background-color: var(--warm-eng-gold);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--systems-white);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    color: var(--warm-eng-gold);
}

/* CTA Band */
.cta-band {
    background-color: var(--warm-eng-gold);
    padding: 4px;
    text-align: center;
}

.cta-band>div {
    background-color: var(--midnight-navy);
    padding: 64px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.cta-band h2 {
    max-width: 800px;
    margin: 0;
    text-align: center;
}

/* Footer */
.site-footer {
    background-color: var(--deep-indigo);
    padding: 64px 0 24px;
    border-top: 1px solid var(--line-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 64px;
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--muted-brass);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    color: var(--technical-gray);
    font-size: 0.875rem;
}

.footer-col a:hover {
    color: var(--systems-white);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--line-color);
    color: var(--technical-gray);
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

/* Accordion */
.accordion {
    border-top: 1px solid var(--line-color);
}

.accordion-item {
    border-bottom: 1px solid var(--line-color);
}

.accordion-header {
    width: 100%;
    padding: 24px 0;
    background: none;
    border: none;
    color: var(--systems-white);
    font-size: 1.125rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-header::after {
    content: '+';
    color: var(--warm-eng-gold);
    font-family: var(--font-mono);
    font-size: 1.5rem;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content p {
    padding-bottom: 24px;
    margin: 0;
}