:root {
    --void: #0B0E11;
    --void-raised: #12161B;
    --grid-line: #1B2027;
    --ink: #E7ECEF;
    --ink-dim: #8A94A0;
    --trace-a: #4FD1C5;
    --trace-b: #D97757;
    --trace-a-soft: rgba(79, 209, 197, 0.12);

    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--void);
    color: var(--ink);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--trace-a);
    color: var(--void);
}

a {
    color: inherit;
    text-decoration: none;
}

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--trace-a);
    outline-offset: 2px;
}

.container {
    max-width: 1000px; /* Slightly wider for the two column hero */
    margin: 0 auto;
    padding: 4rem 2rem 6rem;
}

/* Nav — shared across every page */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.nav-brand {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--ink);
}

.nav-brand .dot {
    color: var(--trace-a);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--ink-dim);
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: var(--ink);
}

.nav-links a[aria-current="page"] {
    color: var(--trace-a);
}

.nav-links a[aria-current="page"]::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 0.5em;
    background: var(--trace-a);
    box-shadow: 0 0 6px var(--trace-a);
}

/* Header / Hero */
header {
    margin-bottom: 7rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* Hero demo — a real AES-256-GCM encrypt in the browser, not a stock graphic */
.hero-demo {
    border: 1px solid var(--grid-line);
    background-color: var(--void-raised);
    background-image:
        repeating-linear-gradient(0deg, rgba(79, 209, 197, 0.05) 0 1px, transparent 1px 24px),
        repeating-linear-gradient(90deg, rgba(79, 209, 197, 0.05) 0 1px, transparent 1px 24px);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    font-family: var(--font-mono);
}

.hero-demo-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.hero-demo-title {
    font-weight: 600;
    color: var(--ink);
}

.hero-demo-badge {
    font-size: 0.7rem;
    color: var(--trace-a);
}

.hero-demo-label {
    font-size: 0.75rem;
    color: var(--ink-dim);
}

.hero-demo-input {
    width: 100%;
    resize: none;
    border: 1px solid var(--grid-line);
    background: var(--void);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.75rem;
    outline: none;
}

.hero-demo-input:focus-visible {
    border-color: var(--trace-a);
}

.hero-demo-wave {
    display: block;
    width: 100%;
    height: 72px;
    border: 1px solid var(--grid-line);
    background: var(--void);
}

.hero-demo-out {
    border: 1px solid var(--grid-line);
    background: var(--void);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.hero-demo-out-label {
    font-size: 0.7rem;
    color: var(--ink-dim);
}

.hero-demo-cipher {
    font-size: 0.78rem;
    word-break: break-all;
    color: var(--ink);
    transition: opacity 0.2s ease;
}

.hero-demo-cipher.burning {
    opacity: 0.15;
}

.hero-demo-burn {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-dim);
    background: transparent;
    border: 1px solid var(--grid-line);
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.hero-demo-burn:hover {
    border-color: var(--trace-a);
    color: var(--trace-a);
}

.hero-demo-note {
    font-size: 0.78rem;
    color: var(--ink-dim);
    line-height: 1.5;
}

.hero-demo-note a {
    text-decoration: underline;
    text-decoration-color: var(--grid-line);
}

.hero-demo-note a:hover {
    color: var(--trace-a);
    text-decoration-color: var(--trace-a);
}

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

h1 {
    font-family: var(--font-mono);
    font-size: clamp(3rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--ink);
}

h1 .dot {
    color: var(--trace-a);
}

.tagline {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    color: var(--ink-dim);
    font-weight: 300;
    margin-bottom: 2rem;
    line-height: 1.5;
}

.about {
    font-size: 1.05rem;
    color: var(--ink);
}

.about p {
    margin-bottom: 1.25rem;
}

.highlight {
    font-weight: 500;
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--trace-a-soft);
    z-index: -1;
    transition: height 0.2s ease;
}

.highlight:hover::after {
    height: 100%;
}

/* Sections */
section {
    margin-bottom: 6rem;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--grid-line);
}

h2 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.section-sub {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--ink-dim);
}

/* Work page header (work.html only) */
.work-header {
    margin-bottom: 4rem;
}

.work-title {
    font-family: var(--font-mono);
    font-size: clamp(2.25rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: var(--ink);
}

.work-title .dot {
    color: var(--trace-a);
}

.work-subtitle {
    font-size: 1.05rem;
    color: var(--ink-dim);
    max-width: 60ch;
}

/* Grid Layout for Projects */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    background: var(--void-raised);
    border: 1px solid var(--grid-line);
    padding: 1.75rem;
    border-radius: 0; /* Sharp corners for edge */
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 1;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0%;
    background: var(--trace-a);
    transition: height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(79, 209, 197, 0.15);
    border-color: var(--trace-a);
}

.project-card:hover::before {
    height: 100%;
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-arrow {
    color: var(--ink-dim);
    transition: transform 0.2s ease, color 0.2s ease;
}

.project-card:hover .project-arrow {
    transform: translate(2px, -2px);
    color: var(--trace-a);
}

.project-desc {
    color: var(--ink-dim);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink);
    background: var(--void);
    border: 1px solid var(--grid-line);
    padding: 0.25rem 0.5rem;
}

.project-card:hover .tag {
    border-color: rgba(138, 148, 160, 0.4);
}

.work-more {
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.work-more a {
    text-decoration: underline;
    text-decoration-color: var(--grid-line);
}

.work-more a:hover {
    color: var(--trace-a);
    text-decoration-color: var(--trace-a);
}

/* Contact */
.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 400px;
}

.contact-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--void-raised);
    border: 1px solid var(--grid-line);
    font-weight: 500;
    transition: all 0.2s ease;
}

.contact-link:hover {
    background: var(--trace-a);
    color: var(--void);
    border-color: var(--trace-a);
    transform: translateX(4px);
}

.contact-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-dim);
}

.contact-link:hover .contact-mono {
    color: rgba(11, 14, 17, 0.65);
}

/* Footer */
footer {
    margin-top: 8rem;
    padding-top: 2rem;
    border-top: 1px solid var(--grid-line);
    font-size: 0.875rem;
    color: var(--ink-dim);
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.footer-meta {
    margin-top: 0.75rem;
}

.footer-mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-dim);
}

.footer-mono a {
    text-decoration: underline;
    text-decoration-color: var(--grid-line);
    text-underline-offset: 2px;
}

.footer-mono a:hover {
    color: var(--trace-a);
    text-decoration-color: var(--trace-a);
}

/* Featured case studies (work.html) */
.case-study {
    border: 1px solid var(--grid-line);
    background-color: var(--void-raised);
    background-image:
        repeating-linear-gradient(0deg, rgba(79, 209, 197, 0.04) 0 1px, transparent 1px 24px),
        repeating-linear-gradient(90deg, rgba(79, 209, 197, 0.04) 0 1px, transparent 1px 24px);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.case-study:last-child {
    margin-bottom: 0;
}

.case-study-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.75rem;
}

.case-study-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.case-study-role {
    font-weight: 500;
    font-size: 1rem;
    color: var(--trace-b);
}

.case-study-link {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-dim);
    transition: color 0.2s ease;
}

.case-study-link:hover {
    color: var(--trace-a);
}

.case-study-desc {
    color: var(--ink-dim);
    margin-bottom: 1.5rem;
    max-width: 60ch;
}

.case-study-steps {
    list-style: none;
    counter-reset: step;
    margin-bottom: 1.5rem;
}

.case-study-steps li {
    counter-increment: step;
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 0.9rem;
    font-size: 0.95rem;
}

.case-study-steps li:last-child {
    margin-bottom: 0;
}

.case-study-steps li::before {
    content: counter(step, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--trace-a);
}

.case-study-steps code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--void);
    border: 1px solid var(--grid-line);
    padding: 0.1rem 0.35rem;
}

.case-study-note {
    font-size: 0.9rem;
    color: var(--ink);
    border-left: 2px solid var(--trace-a);
    padding-left: 1rem;
}

.case-study-media {
    display: grid;
    grid-template-columns: minmax(180px, 240px) 1fr;
    gap: 2rem;
    align-items: start;
}

.case-study-shots {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.case-study-shot {
    border: 1px solid var(--grid-line);
    overflow: hidden;
    background: var(--void);
}

.case-study-shot img {
    display: block;
    width: 100%;
    height: auto;
}

.case-study-body {
    min-width: 0;
}

/* Flow chips — compact visual summary above the detailed steps */
.flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.flow-step {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border: 1px solid var(--grid-line);
    padding: 0.4rem 0.7rem;
    background: var(--void);
    white-space: nowrap;
}

.flow-step.flow-key {
    border-color: var(--trace-b);
    color: var(--trace-b);
    font-weight: 600;
}

.flow-arrow {
    color: var(--ink-dim);
    font-size: 0.85rem;
}

/* Command palette (Cmd+K) */
.cmdk {
    width: min(560px, 90vw);
    padding: 0;
    border: 1px solid var(--grid-line);
    border-radius: 0;
    background: var(--void-raised);
    color: var(--ink);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
}

.cmdk::backdrop {
    background: rgba(5, 6, 8, 0.7);
}

.cmdk-input {
    width: 100%;
    padding: 1.1rem 1.25rem;
    border: none;
    border-bottom: 1px solid var(--grid-line);
    background: transparent;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    outline: none;
    color: var(--ink);
}

.cmdk-list {
    list-style: none;
    max-height: 320px;
    overflow-y: auto;
}

.cmdk-list li {
    padding: 0.85rem 1.25rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
}

.cmdk-list li .cmdk-item-sub {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-dim);
    white-space: nowrap;
}

.cmdk-list li.active {
    background: var(--grid-line);
}

.cmdk-list li.active .cmdk-item-sub {
    color: var(--trace-a);
}

.cmdk-list .cmdk-empty {
    color: var(--ink-dim);
    cursor: default;
}

.cmdk-hint {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--void-raised);
    border: 1px solid var(--grid-line);
    padding: 0.5rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-dim);
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease;
    z-index: 10;
}

.cmdk-hint:hover {
    border-color: var(--trace-a);
    color: var(--trace-a);
}

.cmdk-hint kbd {
    font-family: var(--font-mono);
    background: var(--void);
    border: 1px solid var(--grid-line);
    padding: 0.1rem 0.35rem;
    font-size: 0.7rem;
}

/* Decrypt-on-reveal text */
.decrypt-char {
    transition: color 0.15s ease;
}

.decrypt-char.scrambling {
    color: var(--trace-a);
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Ensure header reveals on load if it's a reveal element */
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (max-width: 768px) {
    .container { padding: 3rem 1.5rem; }
    .nav { flex-wrap: wrap; gap: 0.75rem; }
    header { grid-template-columns: 1fr; gap: 2rem; margin-bottom: 5rem; }
    h1 { font-size: 2.5rem; }
    .project-grid { grid-template-columns: 1fr; }
    .section-header { flex-direction: column; gap: 0.25rem; }
    .case-study { padding: 1.5rem; }
    .case-study-head { flex-direction: column; gap: 0.35rem; }
    .case-study-media { grid-template-columns: 1fr; }
    .case-study-shots { flex-direction: row; }
    .footer-main { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
    .cmdk-hint span { display: none; }
}