/* ============================================
   Keith Miller — Portfolio
   Aesthetic: Command Center / Server Room
   ============================================ */

:root {
    --bg-deep:    #060a13;
    --bg-primary: #0a0e17;
    --bg-surface: #0f1524;
    --bg-raised:  #151d2e;
    --bg-hover:   #1a2438;

    --accent:         #00d4ff;
    --accent-dim:     #00a8cc;
    --accent-glow:    rgba(0, 212, 255, 0.15);
    --accent-glow-strong: rgba(0, 212, 255, 0.3);
    --accent-secondary: #7c5cfc;

    --text-primary:   #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted:     #475569;
    --text-accent:    #00d4ff;

    --border:         #1e293b;
    --border-accent:  rgba(0, 212, 255, 0.2);

    --font-display: 'Space Mono', 'Courier New', monospace;
    --font-body:    'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;

    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Scanline overlay ---- */
.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
}

/* ---- Grid background ---- */
.grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}

.nav--scrolled {
    background: rgba(6, 10, 19, 0.85);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: color 0.2s;
}

.nav__logo:hover { color: var(--accent); }

.nav__logo-bracket {
    color: var(--accent);
    font-weight: 400;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-secondary);
    transition: all 0.3s var(--ease-out-expo);
}

.nav__links {
    display: flex;
    gap: 8px;
}

.nav__links a {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
    position: relative;
}

.nav__links a::before {
    content: attr(data-index) '.';
    color: var(--accent-dim);
    margin-right: 4px;
    font-size: 0.7rem;
    opacity: 0.6;
}

.nav__links a:hover {
    color: var(--accent);
    background: var(--accent-glow);
}

/* ============================================
   Hero
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    width: 800px;
    height: 800px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero__content {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero__status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.15em;
    margin-bottom: 32px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    border-radius: 100px;
    animation: fadeInDown 0.8s var(--ease-out-expo) both;
}

.hero__status-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.hero__name {
    font-family: var(--font-display);
    line-height: 1;
    margin-bottom: 24px;
    animation: fadeInDown 0.8s var(--ease-out-expo) 0.1s both;
}

.hero__name-first {
    display: block;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.04em;
}

.hero__name-last {
    display: block;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    color: transparent;
    -webkit-text-stroke: 2px var(--accent);
    letter-spacing: -0.04em;
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: fadeInDown 0.8s var(--ease-out-expo) 0.2s both;
}

.hero__title-caret {
    color: var(--accent);
    font-weight: 700;
}

.hero__cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

.hero__location {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--text-muted);
    animation: fadeInDown 0.8s var(--ease-out-expo) 0.3s both;
}

.hero__location svg { color: var(--accent-dim); flex-shrink: 0; }

/* Hero buttons */
.hero__actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    animation: fadeInDown 0.8s var(--ease-out-expo) 0.35s both;
}

.hero__btn {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 0.03em;
    transition: all 0.3s var(--ease-out-expo);
}

.hero__btn--primary {
    background: var(--accent);
    color: var(--bg-deep);
}

.hero__btn--primary:hover {
    background: #33ddff;
    box-shadow: 0 4px 24px var(--accent-glow-strong);
    transform: translateY(-2px);
}

.hero__btn--outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.hero__btn--outline:hover {
    color: var(--accent);
    border-color: var(--border-accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.hero__scroll {
    position: absolute;
    bottom: -40px;
    left: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.2s;
    animation: fadeIn 1s var(--ease-out-expo) 0.6s both;
}

.hero__scroll:hover { color: var(--accent); }

.hero__scroll svg {
    animation: bobDown 2s ease-in-out infinite;
}

/* Hero decorative hexagons */
.hero__decoration {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 50%;
    pointer-events: none;
}

.hero__hex {
    position: absolute;
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    transform: rotate(45deg);
    opacity: 0.3;
}

.hex--1 {
    width: 200px; height: 200px;
    top: 20%; right: 10%;
    animation: floatSlow 12s ease-in-out infinite;
}
.hex--2 {
    width: 120px; height: 120px;
    top: 50%; right: 25%;
    animation: floatSlow 10s ease-in-out infinite 2s;
    border-color: rgba(124, 92, 252, 0.15);
}
.hex--3 {
    width: 80px; height: 80px;
    top: 35%; right: 5%;
    animation: floatSlow 8s ease-in-out infinite 4s;
}

/* ============================================
   Section shared styles
   ============================================ */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section--alt {
    background: var(--bg-primary);
}

.section__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 56px;
}

.section__index {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--accent);
    opacity: 0.6;
}

.section__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.section__line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border), transparent);
}

/* ============================================
   About
   ============================================ */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    align-items: start;
}

.about__text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.02rem;
}

.about__lead {
    font-size: 1.15rem !important;
    color: var(--text-primary) !important;
    font-weight: 500;
    line-height: 1.6;
}

.about__stats {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-surface);
}

.stat {
    text-align: center;
}

.stat__number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat__plus {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--accent-dim);
}

.stat__label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 6px;
}

/* ============================================
   Skills
   ============================================ */
.skills__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.skills__grid--4col {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.skill-group {
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-surface);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.skill-group:hover {
    border-color: var(--border-accent);
    box-shadow: 0 0 30px var(--accent-glow);
}

.skill-group__title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.skill-group__title svg {
    opacity: 0.7;
}

.skill-group__list li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(30, 41, 59, 0.5);
    position: relative;
    padding-left: 16px;
    transition: color 0.2s, padding-left 0.2s;
}

.skill-group__list li::before {
    content: '>';
    position: absolute;
    left: 0;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--accent-dim);
    opacity: 0;
    transition: opacity 0.2s;
}

.skill-group__list li:hover {
    color: var(--text-primary);
    padding-left: 20px;
}

.skill-group__list li:hover::before { opacity: 1; }

.skill-group__list li:last-child { border-bottom: none; }

/* ============================================
   Timeline / Experience
   ============================================ */
.timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.timeline__item {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 24px;
}

.timeline__marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 6px;
}

.timeline__dot {
    width: 12px;
    height: 12px;
    border: 2px solid var(--border);
    border-radius: 50%;
    background: var(--bg-deep);
    flex-shrink: 0;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.timeline__dot--active {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow-strong);
}

.timeline__line-v {
    width: 1px;
    flex: 1;
    background: linear-gradient(180deg, var(--border), transparent);
    margin: 8px 0;
}

.timeline__content {
    padding-bottom: 48px;
    padding-left: 16px;
    border-left: 1px solid transparent;
    transition: border-color 0.3s;
}

.timeline__item:hover .timeline__content {
    border-left-color: var(--border-accent);
}

.timeline__item:hover .timeline__dot {
    border-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.timeline__date {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.timeline__role {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.timeline__company {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.timeline__details li {
    color: var(--text-secondary);
    font-size: 0.92rem;
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.timeline__details li::before {
    content: '//';
    position: absolute;
    left: 0;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* ============================================
   Projects
   ============================================ */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-top: 2px solid var(--accent-dim);
    border-radius: 12px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s var(--ease-out-expo);
}

.project-card:hover {
    border-color: var(--border-accent);
    border-top-color: var(--accent);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3), 0 0 30px var(--accent-glow);
    transform: translateY(-4px);
}

.project-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.project-card__status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 100px;
}

.project-card__status--archived {
    color: var(--text-muted);
    background: rgba(71, 85, 105, 0.15);
    border: 1px solid rgba(71, 85, 105, 0.2);
}

.project-card__status--active {
    color: #34d399;
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.project-card__status--dev {
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.project-card__status-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
}

.project-card__status--active .project-card__status-dot,
.project-card__status--dev .project-card__status-dot {
    animation: pulse 2s ease-in-out infinite;
}

.project-card__year {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.project-card__title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.project-card__subtitle {
    color: var(--accent-dim);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.project-card__desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.project-card__stats {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-raised);
    border-radius: 8px;
}

.project-card__stat {
    display: flex;
    flex-direction: column;
}

.project-card__stat-val {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.project-card__stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.project-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.project-card__tags span {
    font-family: var(--font-display);
    font-size: 0.68rem;
    color: var(--text-secondary);
    padding: 4px 10px;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.project-card__footer {
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.project-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--accent);
    transition: opacity 0.2s;
}

.project-card__link:hover { opacity: 0.7; }

/* ============================================
   Education
   ============================================ */
.education__card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 32px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 600px;
}

.education__icon {
    color: var(--accent);
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 12px;
    border: 1px solid var(--border-accent);
}

.education__school {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.education__location {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.education__degree {
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
}

.education__year {
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.75rem;
    margin-top: 2px;
}

/* ============================================
   Contact
   ============================================ */
.contact__content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact__lead {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact__links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.contact__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.3s var(--ease-out-expo);
}

.contact__link svg {
    color: var(--text-muted);
    transition: color 0.3s;
}

.contact__link:hover {
    color: var(--accent);
    border-color: var(--border-accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.contact__link:hover svg { color: var(--accent); }

/* ============================================
   Footer
   ============================================ */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    position: relative;
    z-index: 1;
}

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

.footer__copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer__built {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0.6;
}

/* ============================================
   Scroll Reveal
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.3; }
}

@keyframes blink {
    50% { opacity: 0; }
}

@keyframes bobDown {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(6px); }
}

@keyframes floatSlow {
    0%, 100% { transform: rotate(45deg) translate(0, 0); }
    50%      { transform: rotate(45deg) translate(10px, -15px); }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .skills__grid--4col {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__toggle { display: flex; }

    .nav__links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(6, 10, 19, 0.95);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-10px);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s var(--ease-out-expo);
    }

    .nav__links--open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav__toggle--active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav__toggle--active span:nth-child(2) { opacity: 0; }
    .nav__toggle--active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about__stats {
        flex-direction: row;
        justify-content: space-around;
    }

    .skills__grid,
    .skills__grid--4col {
        grid-template-columns: 1fr;
    }

    .projects__grid {
        grid-template-columns: 1fr;
    }

    .education__card {
        flex-direction: column;
        text-align: center;
    }

    .hero__decoration { display: none; }

    .hero__name-last {
        -webkit-text-stroke-width: 1.5px;
    }

    .footer__inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .section { padding: 72px 0; }
}

@media (max-width: 480px) {
    .about__stats {
        flex-direction: column;
        text-align: center;
    }

    .project-card__stats {
        flex-direction: column;
        gap: 12px;
    }

    .contact__links {
        flex-direction: column;
    }

    .contact__link {
        justify-content: center;
    }
}