/* ============================================================
   PORTFOLIO — leocrawf
   Stack: Vanilla CSS, Inter font, dark mode default
   ============================================================ */

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary:       #0d0d14;
    --bg-secondary:     #111119;
    --bg-card:          #16161f;
    --bg-card-hover:    #1c1c2b;
    --accent-cyan:      #00d4ff;
    --accent-violet:    #7c3aed;
    --accent-gradient:  linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --text-primary:     #f1f5f9;
    --text-secondary:   #94a3b8;
    --text-muted:       #64748b;
    --border:           rgba(255, 255, 255, 0.07);
    --border-accent:    rgba(0, 212, 255, 0.25);
    --nav-height:       72px;
    --section-pad:      108px;
    --container:        1200px;
    --r-sm:  8px;
    --r-md:  12px;
    --r-lg:  20px;
    --r-xl:  28px;
    --ease:  cubic-bezier(0.4, 0, 0.2, 1);
    --t:     0.3s var(--ease);
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* ===== LAYOUT ===== */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
}

.section {
    padding: var(--section-pad) 0;
    position: relative;
}

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    margin-bottom: 20px;
}
.section-tag::before,
.section-tag::after {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: rgba(0, 212, 255, 0.35);
    flex-shrink: 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
}

.section-subtitle {
    font-size: 1.075rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 auto;
    line-height: 1.75;
}

/* ===== GRADIENT TEXT ===== */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 30px;
    border-radius: var(--r-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--t), box-shadow var(--t), border-color var(--t), color var(--t), background var(--t);
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.38);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border);
}
.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.btn-full { width: 100%; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    padding: 4px 0;
    transition: color var(--t), border-color var(--t);
    white-space: nowrap;
    cursor: pointer;
}
.btn-ghost:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.25);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== GRAIN TEXTURE ===== */
.grain::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 180px;
    pointer-events: none;
}

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

.navbar.scrolled {
    background: rgba(13, 13, 20, 0.9);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.05rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--r-sm);
    transition: color var(--t), background var(--t);
}
.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 9px 22px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--r-sm);
    margin-left: 10px;
    transition: transform var(--t), box-shadow var(--t);
}
.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--r-sm);
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--t), opacity var(--t);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(0,212,255,0.5) 25%,
        rgba(124,58,237,0.4) 75%,
        transparent 100%);
    z-index: 5;
}

.hero-aurora {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    /* no z-index: auto (0) — above grain (z-index:-1), below .hero-content (z-index:1) */
}
.hero-aurora-layer {
    position: absolute;
    inset: -30%;
    will-change: transform;
}
.hero-aurora-a {
    filter: blur(44px);
    background:
        radial-gradient(28% 36% at 62% 26%, rgba(0,212,255,0.42), transparent 62%),
        radial-gradient(34% 44% at 86% 74%, rgba(124,58,237,0.50), transparent 62%);
    animation: auroraDriftA 22s ease-in-out infinite;
}
.hero-aurora-b {
    filter: blur(52px);
    background:
        radial-gradient(30% 40% at 24% 80%, rgba(0,212,255,0.26), transparent 62%),
        radial-gradient(40% 50% at 50% 46%, rgba(124,58,237,0.18), transparent 70%);
    animation: auroraDriftB 28s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-top: calc(var(--nav-height) + 48px);
    padding-bottom: 80px;
    width: 100%;
}

.hero-role-tag {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    margin-bottom: 12px;
    animation: fadeInUp 0.6s ease 0.1s both;
}
.hero-role-tag::before {
    content: '';
    display: block;
    width: 20px;
    height: 1px;
    background: var(--accent-cyan);
    flex-shrink: 0;
}

.hero-avail-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(16, 185, 129, 0.10);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: #34d399;
    font-size: 0.5rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 100px;
    letter-spacing: 0.06em;
}
.hero-avail-pill::before {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #34d399;
    flex-shrink: 0;
    animation: pulseDot 2.2s ease infinite;
}

.hero-name {
    font-size: clamp(4rem, 12vw, 9rem);
    font-weight: 900;
    letter-spacing: -0.055em;
    line-height: 0.88;
    margin-bottom: 4px;
    background: linear-gradient(135deg, #f1f5f9 0%, #00d4ff 35%, #7c3aed 65%, #f1f5f9 100%);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 8s ease infinite, fadeInUp 0.7s ease 0.18s both;
}

.hero-apps-label {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 40px;
    background: linear-gradient(135deg,
        rgba(241,245,249,0.62) 0%,
        rgba(0,212,255,0.38) 50%,
        rgba(124,58,237,0.32) 100%);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 8s ease 1s infinite, fadeInUp 0.7s ease 0.25s both;
}

.hero-bottom-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    animation: fadeInUp 0.7s ease 0.35s both;
}

.hero-bottom-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-tagline {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 340px;
}

.hide-mobile { display: inline; }

.hero-ctas {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 28px;
    align-items: flex-end;
    flex-shrink: 0;
    animation: fadeInUp 0.7s ease 0.42s both;
}

.hero-stat { text-align: right; }

.hero-stat-number {
    display: block;
    font-size: 1.9rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.02em;
}

.hero-stat-label {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.scroll-indicator {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, rgba(0,212,255,0.35), transparent);
    overflow: hidden;
    animation: fadeIn 1s ease 1s both;
}
.scroll-indicator::after {
    content: '';
    position: absolute;
    top: -30%;
    left: 0;
    width: 100%;
    height: 30%;
    background: var(--accent-cyan);
    border-radius: 1px;
    animation: scrollDrop 2s ease infinite;
}

/* ===== KEYFRAMES ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-14px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes pulseDot {
    0%, 100% { opacity: 1;   transform: scale(1);   }
    50%       { opacity: 0.4; transform: scale(0.75); }
}
@keyframes shimmer {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes auroraDriftA {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    50%      { transform: translate3d(-3%, 2%, 0) scale(1.10); }
}
@keyframes auroraDriftB {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1.06); }
    50%      { transform: translate3d(4%, -3%, 0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    .hero-aurora-a,
    .hero-aurora-b { animation: none; }
}
@keyframes scrollDrop {
    0%   { top: -30%; opacity: 0; }
    20%  { opacity: 1; }
    80%  { opacity: 0.6; }
    100% { top: 110%; opacity: 0; }
}

/* ===== ABOUT ===== */
.about { background: var(--bg-secondary); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-lead {
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1.7;
    margin-bottom: 22px;
}

.about-body {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 20px;
}
.about-body:last-of-type { margin-bottom: 36px; }

.skills-heading {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 36px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.06);
    border: 1px solid rgba(0, 212, 255, 0.14);
    color: var(--accent-cyan);
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: 100px;
    transition: background var(--t), border-color var(--t);
}
.skill-tag:hover {
    background: rgba(0, 212, 255, 0.14);
    border-color: rgba(0, 212, 255, 0.45);
    box-shadow: 0 0 14px rgba(0, 212, 255, 0.2), inset 0 0 14px rgba(0, 212, 255, 0.05);
}
.skill-tag-cloud:hover {
    background: rgba(124, 58, 237, 0.12);
    border-color: rgba(124, 58, 237, 0.45);
    color: #a78bfa;
    box-shadow: 0 0 14px rgba(124, 58, 237, 0.2), inset 0 0 14px rgba(124, 58, 237, 0.05);
}

.about-location {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== PROJECTS ===== */
.projects { background: var(--bg-primary); }

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

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    overflow: hidden;
    transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.project-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-6px);
    box-shadow: 0 24px 64px rgba(0,0,0,0.45), 0 0 40px rgba(0,212,255,0.07);
}

.project-card-header {
    position: relative;
    height: 196px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-header-1 { background: linear-gradient(135deg, rgba(0,212,255,0.18) 0%, rgba(0,212,255,0.04) 100%); }
.project-header-2 { background: linear-gradient(135deg, rgba(124,58,237,0.18) 0%, rgba(124,58,237,0.04) 100%); }
.project-header-3 { background: linear-gradient(135deg, rgba(16,185,129,0.18) 0%, rgba(16,185,129,0.04) 100%); }

.project-number {
    position: absolute;
    top: 18px;
    left: 22px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: rgba(255,255,255,0.18);
}

.project-screenshot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.22);
}

.project-preview-type {
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    color: var(--accent-cyan);
    opacity: 0.75;
}

.project-preview-note {
    font-size: 0.7rem;
    font-weight: 400;
    color: rgba(255,255,255,0.28);
    text-align: center;
    max-width: 172px;
    line-height: 1.55;
    letter-spacing: 0.01em;
}

.project-card-body { padding: 28px 28px 32px; }

.project-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 12px;
}

.project-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 20px;
}

.project-features { margin-bottom: 22px; }
.project-features li {
    position: relative;
    font-size: 0.845rem;
    color: var(--text-secondary);
    padding: 4px 0 4px 16px;
}
.project-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent-cyan);
    opacity: 0.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}
.tech-tag {
    padding: 4px 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    font-size: 0.735rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* ===== EXPERTISE ===== */
.expertise { background: var(--bg-secondary); }

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

.expertise-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    padding: 40px 34px 44px;
    overflow: hidden;
    transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.expertise-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--border);
    transition: background var(--t);
}
.expertise-card-featured::before { background: var(--accent-gradient); }
.expertise-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.35);
}
.expertise-card:hover::before { background: var(--accent-gradient); }

.expertise-icon {
    width: 56px;
    height: 56px;
    background: rgba(0,212,255,0.09);
    border-radius: var(--r-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    margin-bottom: 26px;
}

.expertise-title {
    font-size: 1.175rem;
    font-weight: 700;
    margin-bottom: 22px;
}

.expertise-list { display: flex; flex-direction: column; gap: 11px; }
.expertise-list li {
    position: relative;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 16px;
}
.expertise-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent-cyan);
    opacity: 0.55;
}

/* ===== PROCESS ===== */
.process { background: var(--bg-primary); }

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

.process-step {
    padding: 34px 30px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    transition: transform var(--t), border-color var(--t);
}
.process-step:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.process-number {
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 18px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.65;
}

.process-title {
    font-size: 1.075rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.process-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--bg-secondary); }

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

.testimonial-card {
    padding: 34px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    transition: transform var(--t), border-color var(--t);
}
.testimonial-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-quote {
    font-size: 0.925rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 26px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.testimonial-name {
    font-size: 0.925rem;
    font-weight: 600;
}
.testimonial-role {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 3px;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 56px;
    align-items: start;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    padding: 44px;
}

.form-group { margin-bottom: 24px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--t), box-shadow var(--t), background var(--t);
    resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    background: rgba(0,212,255,0.03);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}

/* Honeypot — off-screen, never visible to real users */
.form-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.form-success,
.form-error {
    display: none;
    margin-top: 18px;
    padding: 14px 18px;
    border-radius: var(--r-sm);
    font-size: 0.9rem;
    text-align: center;
}
.form-success {
    background: rgba(16,185,129,0.09);
    border: 1px solid rgba(16,185,129,0.22);
    color: #34d399;
}
.form-error {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.22);
    color: #f87171;
}
.form-success.show,
.form-error.show { display: block; }

.contact-info-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 28px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    transition: border-color var(--t), background var(--t), transform var(--t);
}
.contact-item:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.contact-item-icon {
    width: 44px;
    height: 44px;
    background: rgba(0,212,255,0.09);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.contact-item-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.contact-item-value {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: 2px;
}

.contact-availability {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: rgba(16,185,129,0.07);
    border: 1px solid rgba(16,185,129,0.18);
    border-radius: var(--r-md);
    font-size: 0.875rem;
    color: #34d399;
    font-weight: 500;
}

.availability-dot {
    width: 8px;
    height: 8px;
    background: #34d399;
    border-radius: 50%;
    flex-shrink: 0;
    animation: pulseDot 2.2s ease infinite;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 56px;
    margin-bottom: 56px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.75;
    margin-top: 14px;
    max-width: 280px;
}

.footer-links h4,
.footer-social h4 {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 22px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--t);
}
.footer-links a:hover { color: var(--accent-cyan); }

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: background var(--t), border-color var(--t), color var(--t), transform var(--t);
}
.social-link:hover {
    background: rgba(0,212,255,0.1);
    border-color: rgba(0,212,255,0.3);
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 1024px) {
    :root { --section-pad: 80px; }

    .about-grid { grid-template-columns: 1fr; gap: 52px; }

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

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

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

    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
    :root { --section-pad: 64px; }

    .hide-mobile { display: none; }

    /* Mobile nav */
    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(13,13,20,0.97);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        padding: 20px 24px 32px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        transition: transform var(--t), opacity var(--t);
        pointer-events: none;
        z-index: -1;
    }
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link { padding: 13px 16px; }
    .nav-cta  { margin: 10px 0 0; text-align: center; }

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

    /* Hero */
    .hero-name { font-size: clamp(3rem, 16vw, 5rem); }
    .hero-apps-label { font-size: 1.1rem; }
    .hero-bottom-row { flex-direction: column; gap: 28px; align-items: flex-start; }
    .hero-stats { justify-content: flex-start; gap: 24px; }

    /* Grids */
    .projects-grid,
    .expertise-grid,
    .testimonials-grid,
    .process-grid { grid-template-columns: 1fr; }

    /* Contact */
    .contact-form { padding: 28px 22px; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
    .hero-ctas { flex-direction: column; align-items: flex-start; }
    .section-header { margin-bottom: 48px; }
}

/* ===== FOUNDER CREDIT ===== */
.about-founder {
    margin-top: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}
.about-founder strong {
    color: var(--text-secondary);
    font-weight: 600;
}
.footer-founder {
    color: var(--text-muted);
}