/* ══════════════════════════════════════
   THEME SYSTEM — Dark (default) + Light
   ══════════════════════════════════════ */

:root, [data-theme="dark"] {
    --bg: #090C14;
    --bg-card: #0F1620;
    --bg-card-hover: #172033;
    --nav-bg: rgba(9, 12, 20, 0.90);
    --accent: #E07B0A;
    --accent-dim: rgba(224,123,10,0.12);
    --accent-glow: rgba(224,123,10,0.32);
    --accent-hover: #F28C1A;
    --accent-border: rgba(224,123,10,0.24);
    --teal: #06BCD4;
    --teal-dim: rgba(6,188,212,0.12);
    --blue: #1565C0;
    --blue-dim: rgba(21,101,192,0.14);
    --blue-border: rgba(21,101,192,0.22);
    --text: #E8ECF1;
    --text-mid: #8FA3BC;
    --text-dim: #546480;
    --border: rgba(255,255,255,0.07);
    --grid-line: rgba(224,123,10,0.03);
    --glow-accent-opacity: 0.10;
    --glow-teal-opacity: 0.08;
    --glow-yellow-opacity: 0.04;
    --hero-img-opacity: 1.00;
    --card-hover-border: rgba(224,123,10,0.18);
    --btn-primary-text: #09090F;
    --mono: 'Space Mono', monospace;
    --sans: 'Outfit', sans-serif;
    color-scheme: dark;
}

[data-theme="light"] {
    --bg: #F0EDE8;
    --bg-card: #FAF9F7;
    --bg-card-hover: #FFF5E8;
    --nav-bg: rgba(240, 237, 232, 0.93);
    /* Forge amber on warm cream */
    --accent: #B8600A;
    --accent-dim: rgba(184,96,10,0.10);
    --accent-glow: rgba(184,96,10,0.22);
    --accent-hover: #D4720C;
    --accent-border: rgba(184,96,10,0.26);
    /* Ornament cyan — readable on warm cream */
    --teal: #0897A7;
    --teal-dim: rgba(8,151,167,0.10);
    /* Cat outline blue — light mode */
    --blue: #0D4FA0;
    --blue-dim: rgba(13,79,160,0.10);
    --blue-border: rgba(13,79,160,0.20);
    --text: #18130F;
    --text-mid: #42382E;
    --text-dim: #7A6E65;
    --border: rgba(0,0,0,0.09);
    --grid-line: rgba(184,96,10,0.05);
    --glow-accent-opacity: 0.09;
    --glow-teal-opacity: 0.07;
    --glow-yellow-opacity: 0.04;
    --hero-img-opacity: 0.75;
    --card-hover-border: rgba(184,96,10,0.24);
    --btn-primary-text: #FFFFFF;
    color-scheme: light;
}

/* ── BASE ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background 0.4s ease, color 0.4s ease;
}

/* ── NAV ── */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.1rem 2rem;
    background: var(--nav-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    transition: background 0.4s ease, border-color 0.4s ease;
}
.nav-brand {
    display: flex; align-items: center; gap: 0.75rem;
    text-decoration: none;
}
.nav-logo-img {
    height: 34px;
    width: auto;
    border-radius: 5px;
    transition: opacity 0.35s ease;
}
.nav-name {
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: color 0.4s ease;
}
.nav-right { display: flex; align-items: center; gap: 0.8rem; }
.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
    color: var(--text-mid);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta {
    padding: 0.5rem 1.3rem;
    background: var(--accent);
    color: var(--btn-primary-text) !important;
    border-radius: 6px;
    font-weight: 600 !important;
    font-size: 0.8rem !important;
    transition: all 0.2s !important;
}
.nav-cta:hover {
    background: var(--accent-hover) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

/* ── Theme Toggle ── */
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem;
    cursor: pointer;
    display: grid; place-items: center;
    width: 36px; height: 36px;
    color: var(--text-mid);
    transition: all 0.25s;
}
.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-sun { display: none; }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: block; }

/* ── HERO ── */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 8rem 2rem 6rem;
    position: relative;
    overflow: hidden;
}
.hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    transition: opacity 0.5s ease;
}
.hero-glow-1 { top: -8%; right: -5%; width: 550px; height: 550px; background: var(--accent); opacity: var(--glow-accent-opacity); }
.hero-glow-2 { bottom: -15%; left: -8%; width: 500px; height: 500px; background: var(--teal); opacity: var(--glow-teal-opacity); }
.hero-glow-3 { top: 30%; left: 20%; width: 300px; height: 300px; background: #1565C0; opacity: var(--glow-yellow-opacity); }
/* Dark mode: show dark nav cat, hide light */
[data-theme="dark"] .hero-dark-only { display: block !important; }
[data-theme="dark"] .hero-light-only { display: none !important; }
/* Light mode: show light nav cat, hide dark */
[data-theme="light"] .hero-dark-only { display: none !important; }
[data-theme="light"] .hero-light-only { display: block !important; }
.hero-light-only { display: none; }
.hero-inner {
    max-width: 840px;
    margin: 0 auto;
    position: relative; z-index: 1;
}
.hero-tag {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    border-radius: 100px;
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0; animation: slideUp 0.6s ease-out 0.1s forwards;
}
.hero-tag .ember {
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: ember-pulse 1.5s ease-in-out infinite;
}
@keyframes ember-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 4px var(--accent); }
    50% { opacity: 0.4; box-shadow: none; }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
    font-size: clamp(2.5rem, 5.8vw, 4.4rem);
    font-weight: 700;
    line-height: 1.08;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    opacity: 0; animation: slideUp 0.6s ease-out 0.25s forwards;
}
.accent { color: var(--accent); }
.teal { color: var(--teal); }
.hero h1 .accent { color: var(--accent); }
.hero h1 .teal { color: var(--teal); }
.hero-sub {
    font-size: 1.15rem;
    color: var(--text-mid);
    max-width: 580px;
    line-height: 1.75;
    margin-bottom: 2.5rem;
    font-weight: 300;
    opacity: 0; animation: slideUp 0.6s ease-out 0.4s forwards;
}
.hero-actions {
    display: flex; gap: 1rem; flex-wrap: wrap;
    opacity: 0; animation: slideUp 0.6s ease-out 0.55s forwards;
}
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 1.8rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s;
    cursor: pointer; border: none;
}
.btn-primary { background: var(--accent); color: var(--btn-primary-text); }
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--accent-glow);
}
.btn-outline {
    background: transparent; color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn svg { width: 16px; height: 16px; transition: transform 0.2s; }
.btn-primary:hover svg { transform: translateX(3px); }

/* ── DIVIDER ── */
.section-divider {
    height: 80px; display: flex; align-items: center; justify-content: center;
    position: relative;
}
.section-divider::before {
    content: ''; position: absolute; left: 50%;
    width: 1px; height: 100%;
    background: linear-gradient(to bottom, var(--accent), transparent);
    opacity: 0.4;
}

/* ── SHARED ── */
.services { padding: 4rem 2rem 5rem; }
.section-inner { max-width: 1020px; margin: 0 auto; }
.section-tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.8rem;
}
.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 2.5rem;
    line-height: 1.2;
}

/* ── SERVICES ── */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1rem;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.8rem;
    transition: all 0.3s;
    position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px; opacity: 0;
    transition: opacity 0.3s;
}
.service-card:nth-child(1)::before { background: var(--accent); }
.service-card:nth-child(2)::before { background: var(--teal); }
.service-card:nth-child(3)::before { background: #10A876; }
.service-card:nth-child(4)::before { background: var(--blue); }
.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--card-hover-border);
    transform: translateY(-3px);
}
.service-card:hover::before { opacity: 1; }
.service-icon { font-size: 1.5rem; margin-bottom: 1rem; display: block; }
.service-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; }
.service-card p { color: var(--text-mid); font-size: 0.88rem; line-height: 1.6; font-weight: 300; }

/* ── ABOUT ── */
.about { padding: 5rem 2rem; border-top: 1px solid var(--border); }
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
    align-items: start;
}
.about-text p { color: var(--text-mid); margin-bottom: 1rem; font-weight: 300; font-size: 0.95rem; line-height: 1.7; }
.about-text p strong { color: var(--text); font-weight: 600; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.3rem 1rem;
    text-align: center;
    transition: all 0.3s;
}
.stat-card:hover { border-color: var(--card-hover-border); }
.stat-number { font-family: var(--mono); font-size: 1.5rem; font-weight: 700; color: var(--accent); line-height: 1.2; }
.stat-number--cyan { color: var(--teal); }
.stat-number--green { color: #10A876; }
.stat-number--blue { color: var(--blue); }
.stat-label { font-size: 0.75rem; color: var(--text-dim); margin-top: 0.3rem; }
.tech-stack { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.8rem; }
.tech-tag {
    padding: 0.28rem 0.75rem;
    background: var(--blue-dim);
    border: 1px solid var(--blue-border);
    border-radius: 100px;
    font-size: 0.7rem;
    font-family: var(--mono);
    color: var(--blue);
    font-weight: 700;
}

/* ── PROCESS ── */
.process { padding: 5rem 2rem; border-top: 1px solid var(--border); }
.process-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
.step {
    position: relative; padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.3s;
}
.step-number { font-family: var(--mono); font-size: 0.65rem; font-weight: 700; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.8rem; }
.step h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.4rem; }
.step p { color: var(--text-mid); font-size: 0.85rem; line-height: 1.6; font-weight: 300; }

/* ── CONTACT ── */
.contact { padding: 5rem 2rem; border-top: 1px solid var(--border); text-align: center; }
.contact-inner { max-width: 540px; margin: 0 auto; }
.contact p { color: var(--text-mid); margin-bottom: 2rem; font-weight: 300; line-height: 1.7; font-size: 0.95rem; }
.contact-email {
    font-family: var(--mono); font-size: 1.25rem; color: var(--accent);
    text-decoration: none; border-bottom: 1px dashed var(--accent-border);
    padding-bottom: 3px; transition: all 0.2s;
}
.contact-email:hover { border-color: var(--accent); }
.contact-linkedin {
    display: block;
    margin-top: 1rem;
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text-mid);
    text-decoration: none;
    transition: color 0.2s;
}
.contact-linkedin:hover { color: var(--accent); }

/* ── FOOTER ── */
footer {
    padding: 2.5rem 2rem;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    max-width: 1020px; margin: 0 auto;
}
footer p, footer span { font-size: 0.75rem; color: var(--text-dim); }
.footer-brand { font-family: var(--mono); font-weight: 700; }

/* ── SELECTED WORK ── */
.work { padding: 5rem 2rem; border-top: 1px solid var(--border); }

.work-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.work-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.8rem;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.work-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--card-hover-border);
    transform: translateY(-3px);
}

.work-card--wide {
    grid-column: 1 / -1;
}

.work-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.work-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.work-industry {
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.work-type {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.work-accent {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 4px;
}
.work-accent--orange { background: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
.work-accent--teal   { background: var(--teal); box-shadow: 0 0 8px rgba(6,188,212,0.35); }
.work-accent--blue   { background: var(--blue); box-shadow: 0 0 8px rgba(21,101,192,0.35); }

.work-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}

.work-desc {
    color: var(--text-mid);
    font-size: 0.88rem;
    line-height: 1.65;
    font-weight: 300;
    margin: 0;
}

.work-outcomes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 2rem;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}
.work-outcomes-grid .work-outcomes {
    border-top: none;
    padding-top: 0;
}

.work-outcomes {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
}

.work-outcomes li {
    font-size: 0.83rem;
    color: var(--text-mid);
    font-weight: 300;
    line-height: 1.55;
    padding-left: 1rem;
    position: relative;
}

.work-outcomes li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #10A876;
    opacity: 0.8;
}

.work-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
    padding-top: 0.5rem;
}

.work-tag {
    padding: 0.22rem 0.65rem;
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    border-radius: 100px;
    font-size: 0.65rem;
    font-family: var(--mono);
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.work-footnote {
    margin-top: 1.5rem;
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: var(--mono);
    text-align: center;
    font-style: italic;
}

/* ── CREDENTIALS ── */
.credentials { padding: 5rem 2rem; border-top: 1px solid var(--border); }

.cred-intro {
    font-size: 0.95rem;
    color: var(--text-mid);
    font-weight: 300;
    line-height: 1.7;
    max-width: 580px;
    margin-bottom: 2.5rem;
}


.cred-groups {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.cred-group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.4rem 1.5rem;
}
.cred-group-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-mid);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}
.cred-group-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}
.cred-dot--platform  { background: var(--blue); box-shadow: 0 0 6px rgba(21,101,192,0.5); }
.cred-dot--architect { background: var(--teal); box-shadow: 0 0 6px rgba(6,188,212,0.45); }
.cred-dot--consultant{ background: #10A876;     box-shadow: 0 0 6px rgba(16,168,118,0.45); }

.cred-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}
.cred-list li {
    font-size: 0.82rem;
    color: var(--text-mid);
    font-weight: 300;
    line-height: 1.4;
    padding-left: 0.9rem;
    position: relative;
}
.cred-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 0.52em;
    width: 3px; height: 3px;
    border-radius: 50%;
    background: var(--text-dim);
}

.cred-verify {
    text-align: center;
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--text-dim);
    margin-top: 0.5rem;
}
.cred-verify a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dashed var(--accent-border);
    padding-bottom: 1px;
    transition: border-color 0.2s;
}
.cred-verify a:hover { border-color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        flex-direction: column;
        background: var(--nav-bg);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        padding: 1rem 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open { display: flex; }
    .cred-groups { grid-template-columns: 1fr; }
    .work-outcomes-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .process-steps { grid-template-columns: 1fr; }
    .work-grid { grid-template-columns: 1fr; }
    .work-card--wide { grid-column: auto; }
    .hero { padding: 7rem 1.5rem 4rem; }
    footer { flex-direction: column; gap: 0.6rem; text-align: center; }
}
.mobile-menu-btn {
    display: none;
    background: none; border: none; cursor: pointer;
    padding: 0.5rem;
}
.mobile-menu-btn span {
    display: block; width: 20px; height: 2px;
    background: var(--text-mid); margin: 4px 0;
    transition: 0.2s;
}
@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
}