/* ============================================
   ZACH WALLINGTON — Portfolio Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --color-bg: #0a0e17;
    --color-bg-alt: #101624;
    --color-surface: #151c2e;
    --color-surface-hover: #1a2339;
    --color-border: #1e2a42;
    --color-border-hover: #2a3a5c;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    --color-accent: #38bdf8;
    --color-accent-hover: #7dd3fc;
    --color-accent-dim: rgba(56, 189, 248, 0.12);
    --color-accent-glow: rgba(56, 189, 248, 0.25);
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-danger: #f87171;
    --color-featured-border: rgba(56, 189, 248, 0.35);
    --color-consulting: #a78bfa;
    --color-consulting-dim: rgba(167, 139, 250, 0.12);
    --color-software: #34d399;
    --color-software-dim: rgba(52, 211, 153, 0.12);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(56, 189, 248, 0.08);
    --transition-fast: 0.2s ease;
    --transition-med: 0.35s ease;
    --transition-slow: 0.6s ease;
    --container-max: 1140px;
    --nav-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
}

img, svg {
    display: inline-block;
    vertical-align: middle;
}

ul { list-style: none; }

/* --- Noise Overlay --- */
.noise-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Section Base --- */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Scroll Reveal --- */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal="up"] {
    transform: translateY(40px);
}

[data-reveal="left"] {
    transform: translateX(-40px);
}

[data-reveal="right"] {
    transform: translateX(40px);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: background var(--transition-med), box-shadow var(--transition-med), backdrop-filter var(--transition-med);
}

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.95rem;
    z-index: 1001;
}

.nav-logo:hover {
    color: var(--color-text);
}

.logo-icon {
    color: var(--color-accent);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-accent-dim);
}

.nav-link.nav-cta {
    background: var(--color-accent);
    color: var(--color-bg);
    font-weight: 600;
    padding: 8px 20px;
    border-radius: var(--radius-md);
    margin-left: 8px;
}

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

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}

.toggle-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active .toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active .toggle-line:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active .toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    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%);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: orbFloat 12s ease-in-out infinite alternate;
}

.glow-orb-1 {
    width: 400px;
    height: 400px;
    background: rgba(56, 189, 248, 0.08);
    top: 10%;
    left: 20%;
}

.glow-orb-2 {
    width: 350px;
    height: 350px;
    background: rgba(99, 102, 241, 0.06);
    bottom: 20%;
    right: 15%;
    animation-delay: -6s;
    animation-duration: 15s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, -20px) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 860px;
}

/* Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 18px 6px 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

/* Title */
.hero-title {
    font-size: clamp(2.2rem, 6vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.title-accent {
    color: var(--color-accent);
}

/* Subtitle */
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--color-text-muted);
    line-height: 1.75;
    max-width: 680px;
    margin: 0 auto 40px;
}

/* Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-text);
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

.stat-number::after {
    content: '+';
    color: var(--color-accent);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    max-width: 120px;
    text-align: center;
}

/* Buttons */
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-bg);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.3);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-hover);
}

.btn-ghost:hover {
    background: var(--color-surface);
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-dim);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.6;
    animation: scrollFade 3s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollFade {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.3; }
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    background: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all var(--transition-med);
    position: relative;
}

.service-card:hover {
    border-color: var(--color-border-hover);
    background: var(--color-surface-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card.service-featured {
    border-color: var(--color-featured-border);
    box-shadow: var(--shadow-glow);
}

.service-card.service-featured:hover {
    box-shadow: 0 0 60px rgba(56, 189, 248, 0.12);
}

/* Service Category Labels */
.service-category-label {
    position: absolute;
    top: -1px;
    left: 24px;
    padding: 4px 12px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    z-index: 1;
}

.label-websites {
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-top: none;
}

.label-consulting {
    background: var(--color-consulting-dim);
    color: var(--color-consulting);
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-top: none;
}

.label-software {
    background: var(--color-software-dim);
    color: var(--color-software);
    border: 1px solid rgba(52, 211, 153, 0.2);
    border-top: none;
}

.service-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 999px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-dim);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
    line-height: 1.3;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    margin-bottom: 20px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-list li {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    padding-left: 20px;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.5;
}

/* ============================================
   WORK / RESULTS
   ============================================ */
.work {
    background: var(--color-bg);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.work-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition-med);
}

.work-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.work-metric {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 16px;
}

.metric-big {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.metric-unit {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.work-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
    line-height: 1.3;
}

.work-card p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

/* Work Tags */
.work-tag {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-radius: var(--radius-sm);
    vertical-align: middle;
    margin-left: 2px;
}

.tag-websites {
    background: var(--color-accent-dim);
    color: var(--color-accent);
}

.tag-consulting {
    background: var(--color-consulting-dim);
    color: var(--color-consulting);
}

.tag-software {
    background: var(--color-software-dim);
    color: var(--color-software);
}

/* ============================================
   SKILLS
   ============================================ */
.skills {
    background: var(--color-bg-alt);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.skill-category {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: all var(--transition-med);
}

.skill-category:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.skill-category h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}

.skill-category h4 svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 5px 14px;
    background: var(--color-accent-dim);
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 500;
    border-radius: 999px;
    border: 1px solid rgba(56, 189, 248, 0.1);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tag:hover {
    background: rgba(56, 189, 248, 0.2);
    border-color: rgba(56, 189, 248, 0.3);
}

/* ============================================
   PHILOSOPHY
   ============================================ */
.philosophy {
    background: var(--color-bg);
}

.philosophy-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.philosophy-text .section-label {
    display: block;
    text-align: left;
}

.philosophy-text .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.philosophy-text p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 16px;
}

.philosophy-points {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 28px;
}

.point {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.point svg {
    flex-shrink: 0;
    color: var(--color-success);
    margin-top: 2px;
}

/* Terminal Window */
.terminal-window {
    background: #0d1117;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    font-family: var(--font-mono);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.terminal-dot.red { background: var(--color-danger); }
.terminal-dot.yellow { background: var(--color-warning); }
.terminal-dot.green { background: var(--color-success); }

.terminal-title {
    margin-left: auto;
    font-size: 0.72rem;
    color: var(--color-text-dim);
    letter-spacing: 0.02em;
}

.terminal-body {
    padding: 20px 22px 24px;
    font-size: 0.82rem;
    line-height: 1.9;
    min-height: 220px;
}

.term-line {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
}

.term-prompt {
    color: var(--color-accent);
    font-weight: 600;
}

.term-cmd {
    color: var(--color-text);
}

.term-output {
    color: var(--color-text-dim);
}

.term-success {
    color: var(--color-success);
}

.term-cursor {
    display: inline-block;
    color: var(--color-accent);
    animation: blink 1s step-end infinite;
}

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

/* Location Card */
.location-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-top: 20px;
    color: var(--color-accent);
}

.location-card svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.location-card div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.location-card strong {
    font-size: 0.9rem;
    color: var(--color-text);
}

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

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--color-bg-alt);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-label {
    display: block;
    text-align: left;
}

.contact-info .section-title {
    text-align: left;
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--color-accent);
}

.contact-method svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-text-dim);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0;
}

.contact-method div {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.method-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.method-value {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--color-text);
}

a.method-value:hover {
    color: var(--color-accent);
}

/* Form */
.contact-form-wrapper {
    position: relative;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.optional {
    font-weight: 400;
    color: var(--color-text-dim);
    font-style: italic;
    font-size: 0.78rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
    background: var(--color-surface-hover);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--color-surface);
    color: var(--color-text);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-loader {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top-color: var(--color-bg);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn.loading .btn-text {
    opacity: 0.5;
}

.btn.loading .btn-loader {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.form-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    gap: 16px;
}

.form-success.visible {
    display: flex;
}

.form-success svg {
    color: var(--color-success);
}

.form-success h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
}

.form-success p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    max-width: 360px;
    line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 48px 0 36px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-brand .logo-icon {
    color: var(--color-accent);
}

.footer-links {
    display: flex;
    gap: 28px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    transition: color var(--transition-fast);
}

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

.footer-note p {
    font-size: 0.78rem;
    color: var(--color-text-dim);
    line-height: 1.6;
}

.footer-location {
    color: var(--color-text-dim) !important;
    opacity: 0.7;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .philosophy-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .work-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section {
        padding: 72px 0;
    }

    .nav-links {
        position: fixed;
        inset: 0;
        background: rgba(10, 14, 23, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 0 32px;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-med);
    }

    .nav-links.open {
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        font-size: 1.2rem;
        padding: 14px 20px;
        text-align: center;
    }

    .nav-link.nav-cta {
        margin-left: 0;
        margin-top: 16px;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-title {
        font-size: clamp(1.8rem, 7vw, 2.6rem);
    }

    .hero-stats {
        gap: 28px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        max-width: 90px;
        font-size: 0.68rem;
    }

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

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .section-header {
        margin-bottom: 44px;
    }

    .philosophy-layout,
    .contact-layout {
        gap: 36px;
    }

    .terminal-body {
        font-size: 0.72rem;
        padding: 16px 14px 20px;
    }

    .metric-big {
        font-size: 2rem;
    }

    .service-category-label {
        left: 16px;
        top: -1px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 20px;
    }

    .footer-links {
        flex-direction: column;
        gap: 12px;
    }

    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }
}

/* ============================================
   SELECTION & SCROLLBAR
   ============================================ */
::selection {
    background: rgba(56, 189, 248, 0.25);
    color: var(--color-text);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-dim);
}
/* --- Contact Form Errors (server-side validation feedback) --- */
.form-error {
    margin: 0 0 var(--space-xs, 12px);
    padding: 10px 14px;
    border: 1px solid rgba(248, 113, 113, 0.4);
    border-radius: var(--radius-md);
    background: rgba(248, 113, 113, 0.08);
    color: var(--color-danger);
    font-size: 0.9rem;
}