/* ===========================================================
   LogicWeb AI — Styles
   Dark mode néon · vert/jaune · silver
   =========================================================== */

:root {
    --bg-0: #06090c;
    --bg-1: #0c1116;
    --bg-2: #121821;
    --bg-card: #0f151c;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);

    --text: #e8edf2;
    --text-dim: #9aa6b2;
    --text-faint: #5a6571;

    --neon-green: #39ff14;
    --neon-green-soft: #6fff4d;
    --neon-yellow: #f7ff00;
    --neon-yellow-soft: #ffe94d;

    --glow-green: 0 0 24px rgba(57, 255, 20, 0.35);
    --glow-green-strong: 0 0 40px rgba(57, 255, 20, 0.55), 0 0 80px rgba(57, 255, 20, 0.25);

    --gradient-accent: linear-gradient(90deg, var(--neon-green) 0%, var(--neon-yellow) 100%);
    --gradient-soft: linear-gradient(135deg, rgba(57, 255, 20, 0.12) 0%, rgba(247, 255, 0, 0.08) 100%);

    --radius: 14px;
    --radius-lg: 22px;

    --font-display: 'Orbitron', 'Inter', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

    --container: 1180px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
ul { list-style: none; padding: 0; margin: 0; }
a { color: inherit; text-decoration: none; transition: color .2s ease, opacity .2s ease; }
a:hover { color: var(--neon-green-soft); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ---------- Background ---------- */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(57, 255, 20, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(57, 255, 20, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at top, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at top, black 30%, transparent 80%);
    pointer-events: none;
    z-index: 0;
}
.bg-glow {
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(57, 255, 20, 0.18) 0%, transparent 60%);
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
}

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}
.section { padding: 110px 0; position: relative; z-index: 1; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(57, 255, 20, 0.03), transparent); }

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}
.section-head .eyebrow { display: inline-block; margin-bottom: 16px; }
.section-head h2 { margin: 0 0 16px; }
.section-sub { color: var(--text-dim); margin: 0; }

.eyebrow {
    font-family: var(--font-display);
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--neon-green);
    padding: 6px 14px;
    border: 1px solid rgba(57, 255, 20, 0.35);
    border-radius: 999px;
    background: rgba(57, 255, 20, 0.06);
}

h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--text);
    letter-spacing: -0.5px;
    line-height: 1.15;
    margin: 0;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 30px rgba(57, 255, 20, 0.3);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 26px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.3px;
    transition: transform .2s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient-accent);
    color: #0a0f0a;
    box-shadow: var(--glow-green);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-green-strong);
    color: #0a0f0a;
}
.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
}
.btn-ghost:hover {
    background: rgba(57, 255, 20, 0.08);
    border-color: var(--neon-green);
    color: var(--neon-green-soft);
}

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: rgba(6, 9, 12, 0.7);
    border-bottom: 1px solid var(--border);
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-logo {
    height: 36px;
    width: auto;
    filter: drop-shadow(0 0 6px rgba(57, 255, 20, 0.45));
}
.nav-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 1px;
    color: var(--text);
}
.nav-name .accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-left: 4px;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dim);
    position: relative;
}
.nav-menu a:hover { color: var(--text); }
.nav-menu a.nav-cta {
    color: #0a0f0a;
    background: var(--gradient-accent);
    padding: 10px 18px;
    border-radius: 999px;
    box-shadow: var(--glow-green);
}
.nav-menu a.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--glow-green-strong); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform .25s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
    padding: 100px 0 120px;
    position: relative;
    z-index: 1;
}
.hero-inner {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--neon-green);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--neon-green);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}
.hero-title { max-width: 900px; }
.hero-subtitle {
    max-width: 640px;
    color: var(--text-dim);
    font-size: 1.15rem;
    margin: 0;
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 8px;
}
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 56px;
    width: 100%;
    max-width: 720px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.stat-value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: 2px;
}
.stat-label {
    font-size: 13px;
    color: var(--text-dim);
    margin-top: 4px;
}

/* ---------- About ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 64px;
    align-items: center;
}
.about-text p {
    color: var(--text-dim);
    font-size: 1.05rem;
    margin: 0 0 18px;
}
.about-list {
    margin-top: 28px;
    display: grid;
    gap: 12px;
}
.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    font-size: 0.98rem;
}
.check {
    color: var(--neon-green);
    font-weight: bold;
    text-shadow: 0 0 8px rgba(57, 255, 20, 0.5);
}

.about-visual {
    display: flex;
    justify-content: center;
}
.hex-card {
    width: 280px;
    height: 320px;
    background: var(--gradient-soft);
    border: 1px solid rgba(57, 255, 20, 0.3);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--glow-green);
    overflow: hidden;
}
.hex-card::before {
    content: '';
    position: absolute;
    inset: -50%;
    background: conic-gradient(from 0deg, transparent 0%, rgba(57, 255, 20, 0.15) 25%, transparent 50%, rgba(247, 255, 0, 0.1) 75%, transparent 100%);
    animation: rotate 12s linear infinite;
}
@keyframes rotate {
    to { transform: rotate(360deg); }
}
.hex-card-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}
.hex-label {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 30px rgba(57, 255, 20, 0.6);
    letter-spacing: 4px;
}
.hex-meta {
    margin-top: 14px;
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--text);
}
.hex-meta span {
    display: block;
    font-size: 11px;
    color: var(--text-dim);
    margin-top: 6px;
    letter-spacing: 1px;
}

/* ---------- Services ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity .25s;
}
.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(57, 255, 20, 0.3);
    box-shadow: 0 20px 60px rgba(57, 255, 20, 0.12);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
    font-size: 2rem;
    color: var(--neon-green);
    margin-bottom: 16px;
    text-shadow: 0 0 12px rgba(57, 255, 20, 0.5);
}
.service-card h3 { margin-bottom: 12px; }
.service-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin: 0 0 18px;
}
.service-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(247, 255, 0, 0.08);
    border: 1px solid rgba(247, 255, 0, 0.2);
    color: var(--neon-yellow-soft);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ---------- Projects ---------- */
.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(--radius-lg);
    overflow: hidden;
    transition: transform .25s ease, border-color .25s ease;
}
.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong);
}
.project-thumb {
    height: 180px;
    background:
        linear-gradient(135deg, rgba(57, 255, 20, 0.12) 0%, rgba(247, 255, 0, 0.06) 100%),
        repeating-linear-gradient(45deg, transparent 0 10px, rgba(255, 255, 255, 0.02) 10px 20px);
    position: relative;
}
.project-thumb::after {
    content: '◇';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: rgba(57, 255, 20, 0.4);
    text-shadow: 0 0 20px rgba(57, 255, 20, 0.4);
}
.project-body { padding: 24px; }
.project-body h3 { margin-bottom: 8px; font-size: 1.05rem; }
.project-body p {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin: 0;
}
.project-card.placeholder { opacity: 0.7; }

/* ---------- Contact ---------- */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 64px;
    align-items: start;
}
.contact-info .eyebrow { margin-bottom: 16px; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info p {
    color: var(--text-dim);
    margin: 0 0 32px;
}
.contact-list { display: grid; gap: 18px; }
.contact-list li {
    display: grid;
    grid-template-columns: 90px 1fr;
    align-items: center;
    padding: 14px 0;
    border-top: 1px solid var(--border);
}
.contact-list li:last-child { border-bottom: 1px solid var(--border); }
.contact-label {
    font-family: var(--font-display);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-faint);
}
.contact-list a:hover { color: var(--neon-green); }

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    display: grid;
    gap: 18px;
}
.form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-row label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-dim);
    letter-spacing: 0.3px;
}
.form-row input,
.form-row textarea {
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    resize: vertical;
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--text-faint); }
.form-row input:focus,
.form-row textarea:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.15);
    background: var(--bg-2);
}
.form-row input.error,
.form-row textarea.error {
    border-color: #ff5470;
    box-shadow: 0 0 0 3px rgba(255, 84, 112, 0.15);
}
.form-submit { margin-top: 8px; justify-self: start; }
.form-status {
    margin: 4px 0 0;
    font-size: 13px;
    min-height: 18px;
}
.form-status.ok { color: var(--neon-green); }
.form-status.err { color: #ff5470; }

/* ---------- Footer ---------- */
.site-footer {
    padding: 50px 0 36px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}
.footer-brand p {
    margin: 8px 0 0;
    font-size: 12px;
    color: var(--text-faint);
    letter-spacing: 1px;
}
.footer-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim);
    text-align: right;
}

/* ---------- Animations on scroll ---------- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(6, 9, 12, 0.96);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(14px);
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
    }
    .nav-menu.open { max-height: 360px; }
    .nav-menu li { width: 100%; }
    .nav-menu a {
        display: block;
        padding: 16px 24px;
        border-top: 1px solid var(--border);
    }
    .nav-menu a.nav-cta {
        margin: 14px 24px;
        border-radius: 999px;
        text-align: center;
    }

    .section { padding: 80px 0; }
    .about-grid,
    .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
    .services-grid,
    .projects-grid { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
    .contact-list li { grid-template-columns: 80px 1fr; }
    .footer-inner { flex-direction: column; text-align: center; }
    .footer-meta { text-align: center; }
    .hex-card { width: 240px; height: 280px; }
}

@media (max-width: 520px) {
    .hero { padding: 60px 0 80px; }
    .btn { padding: 12px 22px; font-size: 14px; }
    .contact-form { padding: 24px; }
}