/* ==========================================================================
   CORE DESIGN SYSTEM & MOBILE-FIRST RESPONSIVE TOKENS
   Dynamically populated at runtime from the active Kotlin ThemeSpec
   ========================================================================== */

:root {
    --bg-primary: #0B0C0E;
    --bg-secondary: #121418;
    --surface-elevated: #181B20;
    --text-primary: #F5F3EF;
    --text-secondary: #B8B5AD;
    --text-muted: #78756E;
    --accent-primary: #D4AF37;
    --accent-secondary: #E5C158;
    --border-subtle: rgba(212, 175, 55, 0.16);
    --border-strong: rgba(212, 175, 55, 0.42);

    --font-heading: 'Syne', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --heading-weight: 700;
    --heading-tracking: -0.03em;

    --max-width: 1320px;
    --section-gap: 5.5rem;
    --card-radius: 4px;
    --border-width: 1px;

    --transition-smooth: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: background-color 0.35s var(--transition-smooth), color 0.35s var(--transition-smooth);
    min-height: 100vh;
    position: relative;
}

/* Subtle tactile grain depth so surfaces never look flat/plastic */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.025;
    background-image: radial-gradient(var(--text-primary) 0.55px, transparent 0.55px);
    background-size: 18px 18px;
}

.portfolio-root {
    position: relative;
    z-index: 2;
    width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease, border-color 0.2s ease;
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

.hidden {
    display: none !important;
}

/* Initial Loading State */
.initial-loader {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.loader-monogram {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    border: 1px solid var(--border-strong);
    width: 64px;
    height: 64px;
    display: grid;
    place-items: center;
    border-radius: var(--card-radius);
}

.loader-caption {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* Typography & Utility Primitives */
.eyebrow-mono {
    font-family: var(--font-mono);
    font-size: clamp(0.7rem, 1.2vw, 0.78rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-primary);
    display: inline-block;
}

.section-kicker {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: 0.65rem;
    display: block;
}

.section-heading {
    font-family: var(--font-heading);
    font-weight: var(--heading-weight);
    letter-spacing: var(--heading-tracking);
    font-size: clamp(1.65rem, 3.4vw, 2.65rem);
    line-height: 1.15;
    color: var(--text-primary);
}

/* Container & Responsive Spacing */
.layout-container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: clamp(1.15rem, 4vw, 3.25rem);
    padding-right: clamp(1.15rem, 4vw, 3.25rem);
}

.portfolio-section {
    padding-top: clamp(3rem, 6vw, var(--section-gap));
    padding-bottom: clamp(3rem, 6vw, var(--section-gap));
    border-bottom: var(--border-width) solid var(--border-subtle);
}

/* Responsive Navigation Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: color-mix(in srgb, var(--bg-primary) 90%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: var(--border-width) solid var(--border-subtle);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    gap: 1rem;
}

.brand-identity {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    cursor: pointer;
    user-select: none;
}

.brand-monogram {
    width: 38px;
    height: 38px;
    border: var(--border-width) solid var(--border-strong);
    border-radius: var(--card-radius);
    display: grid;
    place-items: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--accent-primary);
    background: var(--surface-elevated);
    flex-shrink: 0;
}

.brand-titles {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.brand-persona-tag {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.site-nav-link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.35rem 0;
    position: relative;
}

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

.site-nav-cta {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.55rem 1rem;
    border: var(--border-width) solid var(--border-strong);
    border-radius: var(--card-radius);
    color: var(--accent-primary);
    background: var(--surface-elevated);
}

.site-nav-cta:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
}

/* Mobile Menu Button */
.mobile-menu-toggle {
    display: none;
    background: var(--surface-elevated);
    border: var(--border-width) solid var(--border-subtle);
    border-radius: var(--card-radius);
    padding: 0.45rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* CTA Buttons */
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    margin-top: 2rem;
}

.btn-primary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.88rem 1.55rem;
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 0.92rem;
    border-radius: var(--card-radius);
    border: var(--border-width) solid var(--accent-primary);
    transition: transform 0.18s ease, opacity 0.18s ease;
}

.btn-primary-action:hover {
    transform: translateY(-1px);
    opacity: 0.93;
}

.btn-secondary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.88rem 1.55rem;
    background: transparent;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.92rem;
    border-radius: var(--card-radius);
    border: var(--border-width) solid var(--border-strong);
    transition: background-color 0.18s ease, transform 0.18s ease;
}

.btn-secondary-action:hover {
    background: var(--surface-elevated);
    transform: translateY(-1px);
}

/* Tags / Skill Chips */
.tag-cluster {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1rem;
}

.domain-tag {
    font-family: var(--font-mono);
    font-size: 0.73rem;
    padding: 0.28rem 0.65rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--card-radius);
    color: var(--text-secondary);
}

/* Stealth Footer */
.site-footer {
    padding: 3.5rem 0;
    background: var(--bg-secondary);
}

.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.footer-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Stealth trigger: looks like normal punctuation/monogram to consumers */
.stealth-vault-node {
    cursor: default;
    user-select: none;
    padding: 0 2px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

/* Mobile Optimizations */
@media (max-width: 820px) {
    .mobile-menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: var(--border-width) solid var(--border-strong);
        flex-direction: column;
        align-items: flex-start;
        padding: 1.25rem clamp(1.15rem, 4vw, 2rem);
        gap: 1rem;
        box-shadow: 0 18px 36px rgba(0, 0, 0, 0.35);
    }

    .site-nav.open {
        display: flex;
    }

    .site-nav-cta {
        width: 100%;
        text-align: center;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary-action,
    .btn-secondary-action {
        width: 100%;
    }
}