:root {
    --midnight:   #1D1832;
    --aurum:      #C4962A;
    --parchment:  #F7F4EE;
    --slate:      #4A4468;
    --white:      #FFFFFF;

    --font-serif: Georgia, 'Playfair Display', 'Times New Roman', serif;
    --font-sans:  -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-mono:  'Courier New', Courier, monospace;

    /* Legacy aliases — used by existing layout rules */
    --color-obsidian:       var(--midnight);
    --color-slate:          #2B2550;
    --color-slate-light:    #251f47;
    --color-gold:           var(--aurum);
    --color-gold-muted:     rgba(196, 150, 42, 0.6);
    --color-text-primary:   var(--white);
    --color-text-secondary: rgba(247, 244, 238, 0.65);
    --color-border:         rgba(255, 255, 255, 0.1);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --transition-premium: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --container-max: 1200px;
    --color-error:   #FF4B4B;
    --color-success: #2E7D52;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--midnight);
    color: var(--white);
    font-family: var(--font-sans);
    margin: 0;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 50% 0%, var(--color-slate) 0%, transparent 70%),
        radial-gradient(circle at 0% 100%, rgba(42, 35, 76, 0.5) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.015;
    pointer-events: none;
    z-index: 1;
}

h1, h2 {
    font-family: var(--font-serif);
    color: var(--aurum);
    letter-spacing: -0.01em;
    line-height: 1.15;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    text-transform: none;
}

h3 {
    font-family: var(--font-serif);
    color: var(--aurum);
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    text-transform: none;
}

h4, h5 {
    font-family: var(--font-mono);
    color: var(--aurum);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
    font-size: 0.75rem;
}

h1 { font-size: 3.25rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
    font-family: var(--font-sans);
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    max-width: 65ch;
    margin-bottom: var(--spacing-md);
    line-height: 1.75;
}

.lead {
    font-size: 1.3rem;
    color: var(--white);
}

/* Label utility — monospaced credential/section tag */
.label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--aurum);
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-premium);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

/* ── Section variants ─────────────────────────────────────── */

/* Dark sections (--midnight background) */
.hero.dark,
.content.dark,
.cta-section.dark {
    background-color: var(--midnight);
    position: relative;
}

.hero.dark .container,
.content.dark .container,
.cta-section.dark .container {
    position: relative;
    z-index: 2;
}

.hero.dark h1,
.hero.dark h2,
.hero.dark h3,
.content.dark h1,
.content.dark h2,
.content.dark h3,
.cta-section.dark h1,
.cta-section.dark h2 {
    color: var(--aurum);
}

.hero.dark p,
.content.dark p,
.cta-section.dark p {
    color: var(--color-text-secondary);
}

/* Light sections (--parchment background) */
.content.light {
    background-color: var(--parchment);
    position: relative;
}

.content.light h2,
.content.light h3 {
    color: var(--midnight);
}

.content.light p {
    color: var(--slate);
}

.content.light .label {
    color: var(--aurum);
}

/* Alternate background — legacy class kept for compatibility */
.alternate-bg {
    background-color: var(--color-slate);
    position: relative;
}

.alternate-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
    pointer-events: none;
}

/* ── Header & Nav ──────────────────────────────────────────── */

.site-header {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background-color: rgba(29, 24, 50, 0.92);
    backdrop-filter: blur(24px);
    z-index: 1000;
}

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

.logo {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--aurum);
    display: flex;
    align-items: center;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--aurum);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    transition: var(--transition-premium);
}

.menu-toggle svg line {
    transition: var(--transition-premium);
    transform-origin: center;
}

.menu-toggle[aria-expanded="true"] svg line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] svg line:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] svg line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.menu-toggle:hover {
    transform: scale(1.1);
}

.no-scroll {
    overflow: hidden;
}

.nav-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    margin: 0;
    padding: 0;
}

.nav-links a {
    padding: 0.5rem 0;
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

/* Underline accent */
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--aurum);
    transition: var(--transition-premium);
}

.nav-links a.active::after,
.nav-links a:hover::after {
    width: 100%;
}

/* CTA nav link */
.nav-links a.nav-cta {
    border: 1px solid var(--aurum);
    color: var(--aurum);
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.nav-links a.nav-cta::after {
    display: none;
}

.nav-links a.nav-cta:hover {
    background-color: var(--aurum);
    color: var(--midnight);
}

.header-social {
    display: flex;
    gap: var(--spacing-sm);
    padding-left: var(--spacing-md);
    border-left: 1px solid var(--color-border);
}

.header-social a {
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-social a:hover {
    color: var(--aurum);
    transform: translateY(-1px);
}

/* ── Buttons ───────────────────────────────────────────────── */

.btn-primary,
.cta-button {
    display: inline-block;
    padding: 1rem 2.25rem;
    border: 1px solid var(--aurum);
    background-color: var(--aurum);
    color: var(--midnight);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: var(--transition-premium);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover,
.cta-button:hover {
    background-color: transparent;
    color: var(--aurum);
}

.btn-secondary {
    display: inline-block;
    padding: 1rem 2.25rem;
    border: 1px solid rgba(247, 244, 238, 0.4);
    background-color: transparent;
    color: var(--white);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: var(--transition-premium);
}

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

.cta-small {
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--aurum);
    color: var(--aurum) !important;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    font-weight: 600;
}

/* ── CTA group / button pairing ───────────────────────────── */

.cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

/* ── Hero ──────────────────────────────────────────────────── */

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

/* Subtle grid overlay on dark hero */
.hero.dark::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 1;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-headline {
    max-width: 22ch;
    margin-bottom: var(--spacing-md);
}

.hero-subheadline {
    max-width: 50ch;
    margin-bottom: var(--spacing-lg);
    border-left: 2px solid var(--aurum);
    padding-left: var(--spacing-md);
}

/* Subheadline — italic counter-punch line */
p.subheadline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    max-width: none;
}

/* ── Credential block ──────────────────────────────────────── */

.credential-block {
    border-left: 2px solid var(--aurum);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.credential-block p {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    max-width: none;
}

.credential-block .label {
    display: inline;
    margin-right: 0.5rem;
    margin-bottom: 0;
}

/* ── Card grid ─────────────────────────────────────────────── */

.card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.card {
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.03);
    transition: var(--transition-premium);
}

.card:hover {
    border-color: var(--aurum);
    background-color: rgba(196, 150, 42, 0.05);
}

.card h3 {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card p {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.card a {
    color: var(--aurum);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.card a:hover {
    opacity: 0.75;
}

/* ── Content sections ──────────────────────────────────────── */

.content.light .container,
.content.dark .container,
.cta-section.dark .container {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

/* ── Briefing form ─────────────────────────────────────────── */

.briefing-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.briefing-form {
    margin-top: var(--spacing-lg);
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.68rem;
    letter-spacing: 0.15em;
    color: var(--aurum);
    font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
    background-color: rgba(29, 24, 50, 0.6);
    border: 1px solid var(--color-border);
    padding: 1.25rem;
    color: var(--white);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: var(--transition-premium);
}

::placeholder {
    color: currentColor;
    opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--aurum);
    background-color: rgba(29, 24, 50, 0.9);
    box-shadow: 0 0 0 2px rgba(196, 150, 42, 0.4);
}

.form-group select option {
    background-color: var(--midnight);
    color: var(--white);
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.checkbox-group input {
    width: auto;
    accent-color: var(--aurum);
}

.checkbox-group label {
    text-transform: none;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    letter-spacing: 0;
    font-family: var(--font-sans);
}

.checkbox-group label a {
    color: var(--aurum);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.form-actions {
    margin-top: var(--spacing-md);
}

.status-box {
    padding: 1.25rem;
    margin-bottom: var(--spacing-md);
    border: 1px solid;
    background-color: rgba(29, 24, 50, 0.8);
    font-size: 0.95rem;
    line-height: 1.6;
}

.status-box.error {
    border-color: var(--color-error);
    color: var(--color-error);
}

.status-box.success {
    border-color: var(--color-success);
    color: #5cb882;
}

.status-box.success a {
    color: #5cb882;
    text-decoration: underline;
}

.success-actions {
    margin-top: var(--spacing-lg);
}

/* ── Form overrides for light sections ─────────────────────── */

.content.light .form-group label {
    color: var(--midnight);
}

.content.light .form-group input,
.content.light .form-group select,
.content.light .form-group textarea {
    background-color: var(--white);
    color: var(--midnight);
    border-color: rgba(29, 24, 50, 0.2);
}

.content.light .form-group input:focus,
.content.light .form-group select:focus,
.content.light .form-group textarea:focus {
    background-color: var(--white);
    border-color: var(--aurum);
    box-shadow: 0 0 0 2px rgba(196, 150, 42, 0.4);
}

.content.light .form-group select option {
    background-color: var(--white);
    color: var(--midnight);
}

.content.light .checkbox-group label {
    color: var(--slate);
}

.content.light .status-box {
    background-color: var(--white);
    color: var(--midnight);
    border-color: rgba(29, 24, 50, 0.2);
}

/* ── Grid layouts ──────────────────────────────────────────── */

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.text-center {
    text-align: center;
}

.text-center p {
    margin-left: auto;
    margin-right: auto;
}

/* Portfolio meta sidebar */
.meta-sidebar {
    padding-top: var(--spacing-xs);
}

.meta-sidebar h5 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--aurum);
    text-transform: uppercase;
}

.meta-sidebar p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

/* Insights / legacy columns */
.insight-column h5 {
    margin-bottom: var(--spacing-xs);
}

.badge-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-lg) 0;
    width: 100%;
}

.badge-container img {
    display: block;
    margin: 0 auto;
}

/* ── Footer ────────────────────────────────────────────────── */

.site-footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    background-color: var(--midnight);
    position: relative;
    z-index: 2;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.site-footer p {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.08em;
    margin-bottom: 0;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.footer-nav a {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    transition: var(--transition-premium);
}

.footer-nav a:hover {
    color: var(--aurum);
}

/* Legacy social links — retained for header usage */
.social-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin: var(--spacing-md) 0;
}

.social-links a {
    color: var(--color-text-secondary);
    transition: var(--transition-premium);
}

.social-links a:hover {
    color: var(--aurum);
    transform: scale(1.1);
}

/* Governance / privacy page */
.governance-section {
    margin-bottom: var(--spacing-lg);
}

.governance-section h2 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
}

.governance-divider {
    border: none;
    border-top: 1px solid rgba(74, 68, 104, 0.3);
    margin: var(--spacing-lg) 0;
}

/* ── Responsive ────────────────────────────────────────────── */

@media (max-width: 992px) {
    h1 { font-size: 2.5rem; }
    .grid { gap: var(--spacing-lg); }
    .card-grid { gap: var(--spacing-sm); }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.65rem; }

    .grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .cta-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-header {
        padding: var(--spacing-md) 0;
        position: sticky;
        top: 0;
        background-color: rgba(29, 24, 50, 0.97);
        border-bottom: 1px solid var(--color-border);
    }

    .site-header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 0;
    }

    .menu-toggle {
        display: block;
    }

    .nav-container {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--midnight);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-xl);
        z-index: 1000;
        padding: var(--spacing-xl) var(--spacing-md);
        transform: translateX(100%);
        transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        visibility: hidden;
    }

    .nav-container.is-active {
        transform: translateX(0);
        visibility: visible;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        width: 100%;
    }

    .nav-links li {
        width: auto;
        text-align: center;
        opacity: 0;
        transform: translateY(20px);
        transition: var(--transition-premium);
    }

    .nav-container.is-active .nav-links li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-container.is-active .nav-links li:nth-child(1) { transition-delay: 0.1s; }
    .nav-container.is-active .nav-links li:nth-child(2) { transition-delay: 0.2s; }
    .nav-container.is-active .nav-links li:nth-child(3) { transition-delay: 0.3s; }
    .nav-container.is-active .nav-links li:nth-child(4) { transition-delay: 0.4s; }
    .nav-container.is-active .nav-links li:nth-child(5) { transition-delay: 0.5s; }

    .nav-links a {
        padding: 1rem 0;
        width: auto;
        font-size: 1.2rem;
        display: block;
        border-bottom: none;
    }

    .nav-links a.nav-cta {
        margin-top: var(--spacing-md);
        border: 1px solid var(--aurum);
        width: auto;
        display: inline-block;
        padding: 0.75rem 2rem;
        font-size: 0.9rem;
    }

    .header-social {
        padding-left: 0;
        border-left: none;
        justify-content: center;
        padding-top: var(--spacing-lg);
        width: 100%;
        gap: var(--spacing-lg);
    }

    .header-social svg {
        width: 24px;
        height: 24px;
    }

    .hero {
        min-height: auto;
        text-align: left;
    }

    .hero-headline {
        margin: 0 auto var(--spacing-md);
    }

    .hero-subheadline {
        font-size: 1.1rem;
        border-left: none;
        border-top: 2px solid var(--aurum);
        padding-left: 0;
        padding-top: var(--spacing-md);
        margin: 0 auto var(--spacing-lg);
    }

    .logo {
        margin-bottom: 0;
    }

    .credential-block {
        margin: var(--spacing-md) 0;
    }
}