/* ============================================
   MICROTECH MAINTENANCE & RÉSEAUX
   Thème "tableau noir" inspiré de l'infographie
   ============================================ */

/* ---------- Variables ---------- */
:root {
    --bg-dark: #1f2228;
    --bg-darker: #15171c;
    --bg-chalk: #282c34;
    --bg-card: #2d323c;
    --bg-card-hover: #363c47;

    --text-light: #f3f4f6;
    --text-muted: #a8adb8;
    --text-dim: #7a8091;

    --accent: #f5a623;          /* orange chaud du logo */
    --accent-soft: #f7b94d;
    --accent-dark: #d18a14;
    --accent-yellow: #ffd84d;

    --success: #4ade80;
    --error: #f87171;

    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);

    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-strong: 0 20px 50px rgba(0, 0, 0, 0.55);

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

    --font-hand: 'Caveat', 'Kalam', cursive;
    --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Texture tableau ---------- */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(ellipse at top left, rgba(245, 166, 35, 0.06), transparent 60%),
        radial-gradient(ellipse at bottom right, rgba(255, 216, 77, 0.04), transparent 60%),
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='2'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.03 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
    mix-blend-mode: overlay;
}

/* ---------- Container ---------- */
.container {
    width: min(1180px, calc(100% - 2.5rem));
    margin-inline: auto;
    position: relative;
    z-index: 1;
}

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(21, 23, 28, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 0;
}
.brand-logo {
    height: 56px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}
.main-nav .nav-list {
    list-style: none;
    display: flex;
    gap: 1.8rem;
    margin: 0;
    padding: 0;
    align-items: center;
}
.main-nav a {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
    position: relative;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a.nav-cta {
    background: var(--accent);
    color: #1b1d22;
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    font-weight: 600;
    transition: transform 0.2s, background 0.2s;
}
.main-nav a.nav-cta:hover {
    background: var(--accent-soft);
    transform: translateY(-1px);
    color: #1b1d22;
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
}
.nav-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--text-light);
    transition: transform 0.3s, opacity 0.3s;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 800px 500px at 20% 30%, rgba(245,166,35,0.12), transparent 70%),
        radial-gradient(ellipse 600px 400px at 80% 70%, rgba(255,216,77,0.08), transparent 70%);
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
    align-items: center;
}
.hero-kicker {
    font-family: var(--font-hand);
    font-size: 2.2rem;
    color: var(--accent-yellow);
    margin: 0 0 0.5rem;
    transform: rotate(-2deg);
    display: inline-block;
}
.hero-title {
    margin: 0;
    font-size: clamp(3rem, 7vw, 5.2rem);
    line-height: 1;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.hero-title .micro { color: var(--text-light); }
.hero-title .tech {
    color: var(--accent);
    background: linear-gradient(180deg, var(--accent-soft), var(--accent-dark));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-title .sous {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    letter-spacing: 0.4em;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 0.5rem;
    text-transform: uppercase;
}
.hero-tagline {
    font-family: var(--font-hand);
    font-size: 2.6rem;
    color: var(--accent);
    margin: 1rem 0 1.5rem;
    transform: rotate(-1.5deg);
    display: inline-block;
}
.hero-baseline {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 0 2rem;
}
.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.mascotte {
    max-width: 360px;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
    animation: float 4s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}
.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-darker);
    clip-path: polygon(0 60%, 25% 80%, 50% 55%, 75% 85%, 100% 60%, 100% 100%, 0 100%);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid transparent;
    transition: all 0.2s;
    cursor: pointer;
    text-align: center;
}
.btn-primary {
    background: var(--accent);
    color: #1b1d22;
    box-shadow: 0 8px 20px rgba(245, 166, 35, 0.35);
}
.btn-primary:hover {
    background: var(--accent-soft);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(245, 166, 35, 0.45);
}
.btn-ghost {
    background: transparent;
    border-color: var(--border-strong);
    color: var(--text-light);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--accent);
    color: var(--accent);
}

/* ============================================
   SECTIONS COMMUNES
   ============================================ */
.section-head {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
}
.eyebrow {
    font-family: var(--font-hand);
    font-size: 1.6rem;
    color: var(--accent);
    margin: 0 0 0.5rem;
    transform: rotate(-1deg);
    display: inline-block;
}
.eyebrow-light { color: var(--accent-yellow); }
.section-head h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin: 0 0 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.section-head h2 .accent,
.accent { color: var(--accent); }
.section-sub {
    color: var(--text-muted);
    font-size: 1.08rem;
    margin: 0;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: 6rem 0;
    background: var(--bg-darker);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1.8rem;
}
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.8rem;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-yellow));
    opacity: 0;
    transition: opacity 0.3s;
}
.service-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
    border-color: var(--accent);
    box-shadow: var(--shadow-strong);
}
.service-card:hover::before { opacity: 1; }
.service-illu {
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
}
.service-illu img {
    max-height: 130px;
    width: auto;
    filter: drop-shadow(0 8px 16px rgba(0,0,0,0.35));
}
.service-card h3 {
    font-family: var(--font-hand);
    font-size: 1.9rem;
    color: var(--accent-yellow);
    margin: 0 0 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}
.service-card .pencil {
    color: var(--accent);
    font-size: 1.4rem;
    margin-right: 0.3rem;
}
.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.service-card li {
    padding: 0.45rem 0 0.45rem 1.8rem;
    position: relative;
    color: var(--text-light);
    font-size: 0.96rem;
}
.service-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0.45rem;
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
}
.service-card li em {
    color: var(--text-muted);
    font-style: normal;
    font-size: 0.88rem;
}

/* ============================================
   RSE
   ============================================ */
.rse {
    padding: 6rem 0;
    background:
        radial-gradient(ellipse at center, rgba(74, 222, 128, 0.06), transparent 70%),
        var(--bg-dark);
}
.rse-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
}
.rse-text h2 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin: 0 0 1rem;
    font-weight: 700;
}
.rse-text .pencil { color: var(--accent-yellow); font-size: 1.6rem; }
.rse-lead {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin: 0 0 1.5rem;
}
.rse-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.rse-list li {
    padding: 0.7rem 0 0.7rem 2rem;
    position: relative;
    font-size: 1rem;
    border-bottom: 1px dashed var(--border);
}
.rse-list li:last-child { border-bottom: none; }
.rse-list li::before {
    content: "🌱";
    position: absolute;
    left: 0;
    top: 0.6rem;
}
.rse-list strong { color: var(--accent); }
.rse-visual img {
    max-width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.45));
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: 6rem 0;
    background: var(--bg-darker);
    position: relative;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 2.5rem;
    align-items: start;
}

/* ---- Coordonnées ---- */
.contact-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: sticky;
    top: 100px;
}
.contact-info h3 {
    font-family: var(--font-hand);
    font-size: 2rem;
    color: var(--accent);
    margin: 0 0 1.5rem;
}
.info-row {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    transition: color 0.2s;
}
.info-row:last-of-type { border-bottom: none; }
.info-row:hover { color: var(--accent); }
.info-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 166, 35, 0.1);
    border-radius: 10px;
}
.info-label {
    display: block;
    font-size: 0.78rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.2rem;
}
.info-value {
    display: block;
    color: var(--text-light);
    font-weight: 500;
    font-size: 1rem;
}
.social-row {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.social-link {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-light);
    transition: all 0.2s;
    text-transform: lowercase;
}
.social-link:hover {
    background: var(--accent);
    color: #1b1d22;
    transform: translateY(-2px);
}

/* ---- Formulaire ---- */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.2rem;
}
.contact-form h3 {
    font-family: var(--font-hand);
    font-size: 2rem;
    color: var(--accent);
    margin: 0 0 1.5rem;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group {
    margin-bottom: 1.1rem;
}
.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-darker);
    border: 1.5px solid var(--border-strong);
    border-radius: 10px;
    color: var(--text-light);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, background 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: #1a1c22;
    box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.12);
}
.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(248, 113, 113, 0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23f5a623' d='M6 8 0 0h12z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}
.error-msg {
    display: block;
    color: var(--error);
    font-size: 0.82rem;
    margin-top: 0.3rem;
    min-height: 1rem;
}
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    margin: 0.5rem 0 1.5rem;
    font-size: 0.88rem;
    color: var(--text-muted);
    cursor: pointer;
}
.checkbox-label input {
    margin-top: 0.2rem;
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    flex-shrink: 0;
}
.btn-submit {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.05rem;
}
.btn-submit:disabled {
    opacity: 0.6;
    cursor: wait;
}
.form-feedback {
    margin-top: 1rem;
    padding: 0;
    font-size: 0.95rem;
    min-height: 1rem;
}
.form-feedback.success {
    color: var(--success);
    padding: 1rem;
    background: rgba(74, 222, 128, 0.08);
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 8px;
}
.form-feedback.error {
    color: var(--error);
    padding: 1rem;
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.2);
    border-radius: 8px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    padding: 3rem 0 2rem;
    background: #101217;
    border-top: 1px solid var(--border);
}
.footer-inner {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 2rem;
    align-items: start;
}
.footer-logo {
    height: 48px;
    margin-bottom: 0.7rem;
}
.footer-baseline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.footer-links a {
    color: var(--text-muted);
    font-size: 0.92rem;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }
.footer-copy {
    color: var(--text-dim);
    font-size: 0.85rem;
    text-align: right;
    align-self: end;
}

/* ============================================
   ANIMATIONS SCROLL
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 960px) {
    .hero-inner,
    .rse-inner,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .hero-visual { order: -1; }
    .mascotte { max-width: 240px; }
    .contact-info { position: static; }
    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-links { align-items: center; }
    .footer-copy { text-align: center; }
}

@media (max-width: 720px) {
    .hero { padding: 3rem 0 2.5rem; }
    .services, .rse, .contact { padding: 4rem 0; }
    .form-row { grid-template-columns: 1fr; }

    /* Mobile nav */
    .nav-toggle { display: flex; }
    .nav-list {
        position: absolute;
        top: 100%;
        right: 1.25rem;
        background: var(--bg-card);
        flex-direction: column;
        padding: 1rem;
        border-radius: var(--radius);
        border: 1px solid var(--border);
        min-width: 220px;
        gap: 0.5rem !important;
        box-shadow: var(--shadow-strong);
        transform: translateY(-10px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s, transform 0.2s;
    }
    .nav-list.open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }
    .main-nav a {
        display: block;
        padding: 0.6rem 0.8rem;
        border-radius: 8px;
    }
    .main-nav a.nav-cta {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-kicker { font-size: 1.6rem; }
    .hero-tagline { font-size: 2rem; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .btn { width: 100%; }
    .service-card { padding: 1.6rem 1.4rem; }
}