/* =========================================================
   components.css — UI Components
   ========================================================= */

/* -------------------------------------------------------
   NAV BAR — fixed, frosted glass
------------------------------------------------------- */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: var(--z-nav);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--color-green-10);
    transition:
        background var(--transition-normal),
        border-color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.95);
    border-bottom-color: var(--color-green-20);
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.4),
        0 0 1px var(--color-green-10);
}

.nav__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 100%;
    padding: 0 var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.nav__logo {
    display: flex;
    align-items: center;
    gap: 2px;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: var(--fs-lg);
    color: var(--color-green);
    letter-spacing: var(--ls-wide);
    transition: text-shadow var(--transition-normal);
    text-decoration: none;
}

.nav__logo:hover {
    color: var(--color-green);
    text-shadow: var(--glow-green-sm);
}

.nav__logo-text {
    position: relative;
}

.nav__logo-cursor {
    color: var(--color-cyan);
    animation: blink 1.2s step-end infinite;
    font-weight: 400;
    margin-left: 1px;
}

/* Nav links */
.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav__link {
    font-family: var(--font-code);
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    letter-spacing: var(--ls-wide);
    position: relative;
    padding-bottom: 2px;
    transition: color var(--transition-fast);
    text-decoration: none;
}

/* Underline that grows on hover */
.nav__link::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(
        to right,
        var(--color-cyan),
        var(--color-green)
    );
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-green);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

/* -------------------------------------------------------
   HERO SECTION
------------------------------------------------------- */

.section--hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: var(--nav-height);
    text-align: center;
    overflow: hidden;
}

.hero__content {
    position: relative;
    z-index: var(--z-content);
    max-width: 900px;
    padding: 0 var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

/* Meta prompt line above hero name */
.hero__meta {
    font-family: var(--font-code);
    font-size: var(--fs-sm);
    letter-spacing: var(--ls-wider);
    color: var(--color-cyan);
    font-weight: 400;
    opacity: 0;
    /* override .reveal to use slide animation */
    animation: slide-in-from-left 1s var(--ease-out) 0.3s forwards;
}

.hero__meta-comment {
    color: var(--color-amber);
}

/* Main hero name — large, glowing, with glitch effect */
.hero__name {
    font-family: var(--font-primary);
    font-size: var(--fs-hero);
    font-weight: 700;
    letter-spacing: var(--ls-tighter);
    line-height: var(--lh-tight);
    color: var(--color-green);
    position: relative;
    cursor: default;
    /* Breathing neon glow */
    animation: glow-pulse 5s ease-in-out infinite;
    /* Initial entry */
    opacity: 0;
    animation-name: fadeInUp, glow-pulse;
    animation-duration: 1s, 5s;
    animation-delay: 0.6s, 1.6s;
    animation-fill-mode: forwards, none;
    animation-timing-function: var(--ease-out), ease-in-out;
    animation-iteration-count: 1, infinite;
}

/* Glitch effect — pseudo-elements mirror the text */
.hero__name.glitch::before,
.hero__name.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    /* Start hidden — keyframe animation sets opacity during glitch windows only */
    opacity: 0;
}

.hero__name.glitch::before {
    color: var(--color-cyan);
    text-shadow: -2px 0 var(--color-cyan);
    /* Fire offset from main animation to create multi-layer effect */
    animation: glitch-clip-1 8s steps(1) 2s infinite;
    left: -2px;
}

.hero__name.glitch::after {
    color: var(--color-amber);
    text-shadow: 2px 0 var(--color-amber);
    animation: glitch-clip-2 8s steps(1) 0.5s infinite;
    left: 2px;
}

/* Hero sub-title */
.hero__title {
    font-family: var(--font-primary);
    font-size: var(--fs-2xl);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: var(--ls-wide);
    line-height: var(--lh-snug);
}

.hero__title-sep {
    color: var(--color-amber);
    margin: 0 var(--space-2);
    opacity: 0.8;
}

/* Typewriter tagline */
.hero__tagline {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-family: var(--font-code);
    font-size: var(--fs-md);
    color: var(--text-secondary);
    background: rgba(13, 17, 23, 0.6);
    border: 1px solid var(--color-green-15);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-5);
    min-height: 3rem;
    min-width: 360px;
    text-align: left;
}

.hero__prompt {
    color: var(--color-cyan);
    flex-shrink: 0;
    font-weight: 400;
    font-size: var(--fs-sm);
}

#hero-tagline {
    color: var(--color-green);
    flex: 1;
}

.hero__cursor {
    font-family: var(--font-retro);
    font-size: 1.1em;
    color: var(--color-green);
    animation: blink 1s step-end infinite;
    flex-shrink: 0;
    line-height: 1;
}

/* -------------------------------------------------------
   SCROLL CUE — animated chevron at bottom of hero
------------------------------------------------------- */

.scroll-cue {
    position: absolute;
    bottom: var(--space-10);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-tertiary);
    cursor: pointer;
    text-decoration: none;
    animation: bounce-down 2.4s ease-in-out infinite;
    transition: color var(--transition-fast);
    z-index: var(--z-content);
}

.scroll-cue:hover {
    color: var(--color-green);
}

/* Chevron built with borders */
.scroll-cue__chevron {
    display: block;
    width: 18px;
    height: 18px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    margin-top: 4px;
}

.scroll-cue__label {
    font-family: var(--font-code);
    font-size: var(--fs-xs);
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    opacity: 0.7;
}

/* -------------------------------------------------------
   TERMINAL WINDOW
------------------------------------------------------- */

.terminal-window {
    background: var(--color-navy);
    border: 1px solid var(--color-green-20);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow:
        var(--shadow-terminal),
        0 0 0 1px var(--color-green-05),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    /* Subtle green aura */
    animation: glow-pulse-box 6s ease-in-out infinite;
    width: 100%;
    max-width: 760px;
    height: 500px; /* Fixed height */
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

/* Title bar */
.terminal-titlebar {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-5);
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--color-green-10);
    gap: var(--space-4);
    user-select: none;
}

.terminal-titlebar__dots {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: block;
    transition: filter var(--transition-fast);
}

.dot--red {
    background: #ff5f57;
}
.dot--yellow {
    background: #febc2e;
}
.dot--green {
    background: #28c840;
}

.terminal-window:hover .dot--red {
    filter: brightness(1.2) drop-shadow(0 0 3px #ff5f57);
}
.terminal-window:hover .dot--yellow {
    filter: brightness(1.2) drop-shadow(0 0 3px #febc2e);
}
.terminal-window:hover .dot--green {
    filter: brightness(1.2) drop-shadow(0 0 3px #28c840);
}

.terminal-titlebar__title {
    flex: 1;
    text-align: center;
    font-family: var(--font-code);
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    letter-spacing: var(--ls-wider);
}

.terminal-titlebar__spacer {
    /* Mirrors the dots width for centering */
    width: calc(3 * 12px + 2 * 6px);
    flex-shrink: 0;
}

/* Terminal body */
.terminal-body {
    padding: var(--space-6) var(--space-6) var(--space-8);
    font-family: var(--font-code);
    font-size: var(--fs-md);
    line-height: var(--lh-relaxed);
    color: var(--color-green);
    position: relative;
    /* Subtle inner scanline */
    background-image: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 28px,
        rgba(0, 255, 65, 0.015) 28px,
        rgba(0, 255, 65, 0.015) 29px
    );
    min-height: 180px;
    flex: 1; /* Take remaining space */
    overflow-y: auto; /* Scroll when content overflows */
    overflow-x: hidden; /* Prevent horizontal scroll */
}

/* Individual terminal lines */
.terminal-line {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    line-height: var(--lh-snug);
}

.terminal-prompt {
    color: var(--color-cyan);
    flex-shrink: 0;
    font-weight: 400;
    font-size: var(--fs-sm);
}

.terminal-prompt::before {
    content: "";
}

/* The user-typed command part */
.terminal-command {
    color: var(--color-amber);
}

/* Output text area (populated by JS typewriter) */
.terminal-output {
    margin: 0;
    padding-left: 0;
    color: var(--color-amber);
    line-height: var(--lh-snug);
    white-space: pre-wrap;
}

/* Active prompt cursor line */
.terminal-line--active {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

/* Cursor dims and stops blinking when terminal loses focus */
.terminal-cursor {
    font-family: var(--font-retro);
    font-size: 1.2em;
    color: var(--color-green);
    opacity: 0.35;
    animation: none;
    line-height: 1;
}

/* Cursor only blinks when the hidden input is focused */
.terminal-cursor.active {
    opacity: 1;
    animation: blink 1s step-end infinite;
}

/* ── Interactive input line ── */

.terminal-line--input {
    position: relative;
}

/* Invisible input that captures keystrokes */
.terminal-hidden-input {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    background: none;
    border: none;
}

/* Characters being typed — sits between prompt and cursor */
.terminal-input-display {
    color: var(--color-green);
    font-family: var(--font-primary);
    font-size: var(--fs-sm);
    margin-left: var(--space-2);
    white-space: pre;
}

/* Echoed command lines (after Enter) */
.terminal-line--echo {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-2);
    opacity: 0.75;
}

.terminal-echo-cmd {
    color: var(--color-amber);
    font-size: var(--fs-sm);
}

/* -------------------------------------------------------
   SKILL TAGS
------------------------------------------------------- */

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: var(--color-green-05);
    border: 1px solid var(--color-green-20);
    border-radius: var(--radius-full);
    font-family: var(--font-code);
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    letter-spacing: var(--ls-wide);
    cursor: default;
    /* Initial state — hidden until JS observer fires */
    opacity: 0;
    transform: translateY(16px) scale(0.92);
    transition:
        color var(--duration-normal) var(--ease-out),
        background var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

/* Entry animation — observer.js adds .tag-visible to each tag.
   animation-delay is also set inline by JS via element.style.animationDelay.
   The --stagger custom property acts as a CSS-only fallback.          */
.skill-tag.tag-visible {
    animation: tagPopIn 0.4s ease var(--stagger, 0ms) forwards;
}

/* CSS-only stagger fallback via :nth-child (used when JS sets animation-delay inline,
   these --stagger vars are overridden by the inline style anyway)           */
.skills-grid .skill-tag:nth-child(1) {
    --stagger: 0ms;
}
.skills-grid .skill-tag:nth-child(2) {
    --stagger: 60ms;
}
.skills-grid .skill-tag:nth-child(3) {
    --stagger: 120ms;
}
.skills-grid .skill-tag:nth-child(4) {
    --stagger: 180ms;
}
.skills-grid .skill-tag:nth-child(5) {
    --stagger: 240ms;
}
.skills-grid .skill-tag:nth-child(6) {
    --stagger: 300ms;
}
.skills-grid .skill-tag:nth-child(7) {
    --stagger: 360ms;
}
.skills-grid .skill-tag:nth-child(8) {
    --stagger: 420ms;
}
.skills-grid .skill-tag:nth-child(9) {
    --stagger: 480ms;
}
.skills-grid .skill-tag:nth-child(10) {
    --stagger: 540ms;
}
.skills-grid .skill-tag:nth-child(11) {
    --stagger: 600ms;
}
.skills-grid .skill-tag:nth-child(12) {
    --stagger: 660ms;
}
.skills-grid .skill-tag:nth-child(13) {
    --stagger: 720ms;
}
.skills-grid .skill-tag:nth-child(14) {
    --stagger: 780ms;
}
.skills-grid .skill-tag:nth-child(15) {
    --stagger: 840ms;
}
.skills-grid .skill-tag:nth-child(16) {
    --stagger: 900ms;
}
.skills-grid .skill-tag:nth-child(17) {
    --stagger: 960ms;
}
.skills-grid .skill-tag:nth-child(18) {
    --stagger: 1020ms;
}
.skills-grid .skill-tag:nth-child(19) {
    --stagger: 1080ms;
}
.skills-grid .skill-tag:nth-child(20) {
    --stagger: 1140ms;
}
.skills-grid .skill-tag:nth-child(21) {
    --stagger: 1200ms;
}
.skills-grid .skill-tag:nth-child(22) {
    --stagger: 1260ms;
}
.skills-grid .skill-tag:nth-child(23) {
    --stagger: 1320ms;
}
.skills-grid .skill-tag:nth-child(24) {
    --stagger: 1380ms;
}

/* Hover state — cyan glow */
.skill-tag:hover {
    color: var(--color-cyan);
    background: var(--color-cyan-10);
    border-color: var(--color-cyan-40);
    box-shadow: var(--glow-cyan-sm);
    transform: translateY(-2px) scale(1.04);
}

/* -------------------------------------------------------
   CONTACT CARDS
------------------------------------------------------- */

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* ===================================================
   TOOLS SECTION
=================================================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
}

.tool-card {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
    background: rgba(13, 17, 23, 0.7);
    border: 1px solid var(--color-green-15);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition:
        border-color var(--transition-normal),
        box-shadow var(--transition-normal),
        background var(--transition-normal),
        transform var(--duration-fast) var(--ease-spring);
}

.tool-card:hover {
    border-color: var(--color-cyan-40);
    box-shadow: var(--glow-cyan-md), var(--shadow-card);
    background: rgba(13, 17, 23, 0.9);
    transform: translateY(-4px);
    color: var(--color-green);
}

.tool-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-green-05);
    border: 1px solid var(--color-green-15);
    border-radius: var(--radius-lg);
    color: var(--color-green);
    transition: all var(--transition-normal);
    flex-shrink: 0;
}

.tool-card__icon svg {
    width: 28px;
    height: 28px;
}

.tool-card:hover .tool-card__icon {
    color: var(--color-cyan);
    background: var(--color-cyan-10);
    border-color: var(--color-cyan-30);
    box-shadow: var(--glow-cyan-sm);
}

.tool-card__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex-grow: 1;
}

.tool-card__label {
    font-family: var(--font-primary);
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--text-secondary);
    transition: color var(--transition-normal);
}

.tool-card:hover .tool-card__label {
    color: var(--color-cyan);
}

.tool-card__desc {
    font-family: var(--font-code);
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
    transition: color var(--transition-normal);
}

.tool-card:hover .tool-card__desc {
    color: var(--text-secondary);
}

.tool-card__arrow {
    font-size: var(--fs-lg);
    color: var(--text-muted);
    transition: all var(--transition-normal);
}

.tool-card:hover .tool-card__arrow {
    color: var(--color-cyan);
    transform: translateX(4px);
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
    padding: var(--space-8) var(--space-6);
    background: rgba(13, 17, 23, 0.7);
    border: 1px solid var(--color-green-15);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    /* Initial state hidden — observer.js adds .card-visible */
    opacity: 0;
    transform: translateY(20px);
    transition:
        border-color var(--transition-normal),
        box-shadow var(--transition-normal),
        background var(--transition-normal),
        transform var(--duration-fast) var(--ease-spring);
}

/* Entry animation — observer.js adds .card-visible + sets animationDelay inline */
.contact-card.card-visible {
    animation: cardReveal 0.5s ease forwards;
    /* Explicitly set so later animation overrides never reset opacity to 0 */
    opacity: 1;
    transform: translateY(0);
}

/* Shimmer sweep on hover */
.contact-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        transparent 30%,
        rgba(0, 229, 255, 0.07) 50%,
        transparent 70%
    );
    background-size: 300% 100%;
    background-position: -200% center;
    transition: background-position 0.6s var(--ease-out);
    pointer-events: none;
}

/* Top-edge neon accent line */
.contact-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-cyan-30),
        transparent
    );
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.contact-card:hover {
    border-color: var(--color-cyan-40);
    box-shadow: var(--glow-cyan-md), var(--shadow-card);
    background: rgba(13, 17, 23, 0.9);
    transform: translateY(-4px);
    color: var(--color-green);
}

.contact-card:hover::before {
    background-position: 200% center;
}

.contact-card:hover::after {
    opacity: 1;
}

/* Card icon */
.contact-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-green-05);
    border: 1px solid var(--color-green-15);
    border-radius: var(--radius-lg);
    color: var(--color-green);
    transition:
        color var(--transition-normal),
        background var(--transition-normal),
        border-color var(--transition-normal),
        box-shadow var(--transition-normal);
    flex-shrink: 0;
}

.contact-card__icon svg {
    width: 22px;
    height: 22px;
}

.contact-card:hover .contact-card__icon {
    color: var(--color-cyan);
    background: var(--color-cyan-10);
    border-color: var(--color-cyan-30);
    box-shadow: var(--glow-cyan-sm);
}

/* Card label + handle */
.contact-card__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.contact-card__label {
    font-family: var(--font-primary);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    color: var(--text-tertiary);
    transition: color var(--transition-normal);
}

.contact-card:hover .contact-card__label {
    color: var(--color-cyan);
}

.contact-card__handle {
    font-family: var(--font-code);
    font-size: var(--fs-md);
    color: var(--text-secondary);
    transition: color var(--transition-normal);
}

.contact-card:hover .contact-card__handle {
    color: var(--color-green);
}

/* Arrow indicator */
.contact-card__arrow {
    font-size: var(--fs-md);
    color: var(--text-muted);
    transition:
        color var(--transition-normal),
        transform var(--transition-normal);
    line-height: 1;
}

.contact-card:hover .contact-card__arrow {
    color: var(--color-cyan);
    transform: translateX(4px);
}

/* Email card variant — amber accent */
.contact-card--email:hover {
    border-color: var(--color-amber-20);
    box-shadow: var(--glow-amber-sm), var(--shadow-card);
}

.contact-card--email::after {
    background: linear-gradient(
        to right,
        transparent,
        var(--color-amber-20),
        transparent
    );
}

.contact-card--email:hover .contact-card__icon {
    color: var(--color-amber);
    background: var(--color-amber-10);
    border-color: var(--color-amber-20);
    box-shadow: var(--glow-amber-sm);
}

.contact-card--email:hover .contact-card__label {
    color: var(--color-amber);
}

.contact-card--email:hover .contact-card__arrow {
    color: var(--color-amber);
}

/* Email card — glitching (unlock transition) state */
.contact-card--email[data-state="glitching"] {
    animation:
        card-glitch-shake 0.08s linear infinite,
        card-glitch-bg 0.12s steps(1) infinite;
    cursor: wait;
}

.contact-card--email[data-state="glitching"] .contact-card__icon {
    animation: blink 0.1s step-end infinite;
}

.contact-card--email[data-state="glitching"] .contact-card__handle {
    color: var(--color-cyan);
    letter-spacing: 0.05em;
}

/* Email card — pending (challenge) state */
.contact-card--email[data-state="pending"] {
    border-color: var(--color-amber-20);
    box-shadow: var(--glow-amber-sm), var(--shadow-card);
    animation: glow-pulse-box 1.2s ease-in-out infinite;
}

.contact-card--email[data-state="pending"] .contact-card__icon {
    color: var(--color-amber);
    background: var(--color-amber-10);
    border-color: var(--color-amber-20);
}

.contact-card--email[data-state="pending"] .contact-card__handle {
    color: var(--color-amber);
    animation: blink 0.8s step-end infinite;
}

.contact-card--email[data-state="pending"] .contact-card__arrow {
    color: var(--color-amber);
}

/* Email card — unlocked state */
.contact-card--email[data-state="unlocked"] .contact-card__handle {
    color: var(--color-cyan);
    font-size: 0.85em;
}

/* -------------------------------------------------------
   FOOTER
------------------------------------------------------- */

.footer {
    position: relative;
    z-index: var(--z-content);
    padding: var(--space-16) var(--space-8) var(--space-8);
    border-top: 1px solid var(--color-green-10);
    background: linear-gradient(to bottom, transparent, rgba(10, 10, 15, 0.9));
}

.footer__inner {
    max-width: var(--content-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    text-align: center;
}

/* ASCII art rack */
.footer__ascii {
    font-family: var(--font-retro);
    font-size: clamp(0.9rem, 2vw, 1.15rem);
    line-height: 1.35;
    color: var(--color-green-30);
    white-space: pre;
    letter-spacing: 0.05em;
    text-align: center;
    transition: color var(--transition-slow);
}

.footer:hover .footer__ascii {
    color: var(--color-green-60);
}

/* AS routing tag */
.footer__routing {
    font-family: var(--font-code);
    font-size: var(--fs-md);
    color: var(--color-amber);
    letter-spacing: var(--ls-wider);
    text-shadow: var(--glow-amber-sm);
    margin-top: var(--space-2);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
}

/* ASN hop styling */
.asn-hop {
    position: relative;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.asn-hop:hover {
    color: var(--color-cyan);
    text-shadow: var(--glow-cyan-sm);
    border-color: var(--color-cyan-20);
    background: var(--color-cyan-05);
    transform: translateY(-2px);
}

.asn-hop::before {
    content: attr(data-org);
    position: absolute;
    bottom: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: var(--color-navy);
    color: var(--color-cyan);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-cyan-20);
    font-size: var(--fs-xs);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    box-shadow: var(--glow-cyan-sm);
    z-index: var(--z-tooltip);
}

.asn-hop::after {
    content: attr(data-year);
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: var(--color-navy);
    color: var(--color-amber);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-amber-20);
    font-size: var(--fs-xs);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: var(--z-tooltip);
}

.asn-hop:hover::before,
.asn-hop:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* ASN separator arrow */
.asn-separator {
    color: var(--color-green-40);
    font-size: var(--fs-sm);
    transition: all var(--transition-fast);
}

.footer__routing:hover .asn-separator {
    color: var(--color-green);
    text-shadow: var(--glow-green-sm);
}

/* Active/ping animation */
.asn-hop.ping {
    animation: asn-ping 0.6s ease-out;
}

@keyframes asn-ping {
    0% {
        box-shadow: 0 0 0 0 var(--color-cyan-40);
    }
    100% {
        box-shadow: 0 0 0 10px transparent;
    }
}

/* Traceroute animation */
.asn-hop.trace {
    animation: traceroute 0.5s ease-out forwards;
    opacity: 0;
}

@keyframes traceroute {
    0% {
        opacity: 0;
        transform: translateX(-10px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Copyright */
.footer__copy {
    font-family: var(--font-code);
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
    letter-spacing: var(--ls-wide);
}

/* Built with */
.footer__built {
    font-family: var(--font-code);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    letter-spacing: var(--ls-wide);
}

.footer__built::before {
    content: "> ";
    color: var(--color-green-20);
}

/* -------------------------------------------------------
   ABOUT SECTION — layout specifics
------------------------------------------------------- */

.section--about .section__inner {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-8);
}

/* -------------------------------------------------------
   SKILLS SECTION — layout specifics
------------------------------------------------------- */

.section--skills .section__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* Category label above skill groups (optional enhancement) */
.skills-category {
    font-family: var(--font-code);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    letter-spacing: var(--ls-widest);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

/* -------------------------------------------------------
   CONTACT SECTION — layout specifics
------------------------------------------------------- */

.section--contact .section__inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* -------------------------------------------------------
   Decorative horizontal rule
------------------------------------------------------- */

.hr-neon {
    border: none;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-green-20) 20%,
        var(--color-green-20) 80%,
        transparent
    );
    margin: var(--space-4) 0;
}