/* ═══════════════════════════════════════════════
   PROXIMIPAIE — Design System & Styles
   Cabinet premium • Minimaliste • Conversion
   ═══════════════════════════════════════════════ */

/* ── DESIGN TOKENS ── */
:root {
    /* Palette */
    --color-bg:         #0b1829;
    --color-bg-alt:     #10203a;
    --color-bg-card:    #152a45;
    --color-bg-elevated:#1a3350;
    --color-surface:    rgba(255,255,255,0.04);
    --color-border:     rgba(255,255,255,0.06);
    --color-border-hover:rgba(255,255,255,0.12);

    --color-text:       #e4e2dd;
    --color-text-secondary: #8e9ab0;
    --color-text-muted: #5a6578;

    --color-primary:    #2563eb;
    --color-primary-hover:#1d4ed8;
    --color-primary-glow:rgba(37,99,235,0.15);

    --color-accent:     #c4943f;
    --color-accent-glow:rgba(196,148,63,0.10);

    /* Typography */
    --font-display:     'Libre Baskerville', 'Georgia', serif;
    --font-body:        'Sora', 'Helvetica Neue', sans-serif;

    /* Spacing scale */
    --s-4:  4px;  --s-8:  8px;  --s-12: 12px;
    --s-16: 16px; --s-20: 20px; --s-24: 24px;
    --s-32: 32px; --s-40: 40px; --s-48: 48px;
    --s-64: 64px; --s-80: 80px; --s-96: 96px;
    --s-128:128px;

    /* Layout */
    --max-width: 840px;
    --section-py: clamp(80px, 11vh, 130px);

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;

    /* Transitions */
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --duration: 0.3s;
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }

body {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

img { max-width:100%; height:auto; display:block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ── ATMOSPHERE ── */
body::before {
    content:'';
    position: fixed; inset:0;
    background:
        radial-gradient(ellipse 70% 50% at 15% 5%, rgba(37,99,235,0.04) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 85% 90%, rgba(196,148,63,0.03) 0%, transparent 55%);
    pointer-events: none;
    z-index: 0;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); letter-spacing: -0.01em; margin-bottom: 0.8em; }
h3 { font-size: clamp(1.1rem, 1.6vw, 1.35rem); letter-spacing: 0; margin-bottom: 0.5em; }
h4 { font-size: 0.82rem; font-family: var(--font-body); font-weight: 500; text-transform: uppercase; letter-spacing: 0.15em; color: var(--color-primary); margin-bottom: 1em; }

p { color: var(--color-text-secondary); font-size: clamp(0.93rem, 1.05vw, 1.02rem); margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

.text-accent { color: var(--color-accent); }
.text-muted  { color: var(--color-text-muted); }

/* ── LAYOUT ── */
.page { position: relative; z-index:1; }

section {
    padding: var(--section-py) clamp(20px, 5vw, 40px);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* ── DIVIDER ── */
.divider {
    display: flex;
    justify-content: center;
    padding: 0 var(--s-40);
}
.divider span {
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

/* ── SCROLL REVEAL ── */
.sr {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.sr.is-visible { opacity:1; transform:translateY(0); }
.sr-d1 { transition-delay:0.08s; }
.sr-d2 { transition-delay:0.16s; }
.sr-d3 { transition-delay:0.24s; }
.sr-d4 { transition-delay:0.32s; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .sr { opacity:1; transform:none; transition:none; }
}

/* ═══════════════════════════════════════════════
   HEADER / NAV
   ═══════════════════════════════════════════════ */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: var(--s-12) clamp(20px, 5vw, 40px);
    transition: background var(--duration) var(--ease), box-shadow var(--duration) var(--ease), padding var(--duration) var(--ease);
}
.site-header.scrolled {
    background: rgba(11,24,41,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--color-border);
    padding-top: var(--s-8);
    padding-bottom: var(--s-8);
}
.site-header.scrolled .logo img {
    height: 50px;
    width: 50px;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 130px;
    width: 130px;
    object-fit: cover;
    border-radius: 10px;
    transition: all var(--duration) var(--ease);
}

.nav-links {
    display: flex;
    gap: var(--s-32);
    list-style: none;
}
.nav-links a {
    font-size: 0.82rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
    transition: color var(--duration);
    position: relative;
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--color-text); }
.nav-links a::after {
    content:'';
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 1px;
    background: var(--color-accent);
    transition: width var(--duration) var(--ease);
}
.nav-links a:hover::after { width:100%; }

.nav-cta {
    font-size: 0.82rem;
    font-weight: 400;
    color: var(--color-primary) !important;
    border: 1px solid rgba(37,99,235,0.3);
    padding: 0.5em 1.2em;
    border-radius: var(--radius-sm);
    transition: all var(--duration);
}
.nav-cta:hover {
    background: var(--color-primary);
    color: #fff !important;
    border-color: var(--color-primary);
}
.nav-cta::after { display:none !important; }

/* Mobile nav */
.nav-toggle { display:none; background:none; border:none; padding:var(--s-8); }
.nav-toggle span {
    display:block; width:22px; height:2px;
    background:var(--color-text-secondary);
    margin:5px 0;
    transition: all var(--duration);
}

@media (max-width:680px) {
    .nav-toggle { display:block; }
    .nav-links {
        position: fixed; top:0; right:0;
        width: 260px; height: 100vh;
        background: var(--color-bg-alt);
        flex-direction: column;
        padding: var(--s-80) var(--s-32);
        gap: var(--s-24);
        transform: translateX(100%);
        transition: transform 0.35s var(--ease);
        box-shadow: -8px 0 30px rgba(0,0,0,0.4);
        z-index: 200;
    }
    .nav-links.open { transform: translateX(0); }
    .nav-overlay {
        display:none; position:fixed; inset:0;
        background:rgba(0,0,0,0.5); z-index:199;
    }
    .nav-overlay.open { display:block; }
}

/* ═══════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 180px;
    padding-bottom: var(--s-64);
}

.hero-content { max-width: 640px; }

.hero-logo {
    width: 90px; height: 90px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    margin-bottom: var(--s-24);
    border: 2px solid var(--color-border-hover);
    box-shadow: 0 6px 24px rgba(0,0,0,0.3);
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.1s forwards;
}

.hero-eyebrow {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--s-24);
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.2s forwards;
}

.hero h1 {
    margin-bottom: var(--s-20);
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.35s forwards;
}
.hero h1 em { font-style:italic; color: var(--color-accent); }

.hero-subtitle {
    font-size: clamp(1.02rem, 1.2vw, 1.12rem);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--s-32);
    max-width: 560px;
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.5s forwards;
}

.hero-checks {
    list-style:none; margin-bottom: var(--s-40);
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.65s forwards;
}
.hero-checks li {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    padding: 0.35em 0;
    display: flex; align-items: baseline; gap: 0.7em;
}
.hero-checks li::before {
    content:'✓'; color: var(--color-primary);
    font-weight:600; flex-shrink:0;
}

.hero-cta {
    opacity:0; animation: fadeUp 0.5s var(--ease) 0.8s forwards;
}

@keyframes fadeUp {
    from { opacity:0; transform:translateY(18px); }
    to   { opacity:1; transform:translateY(0); }
}

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center; gap: 0.5em;
    padding: 0.9em 2em;
    font-family: var(--font-body);
    font-size: 0.9rem; font-weight: 500;
    border-radius: var(--radius-sm);
    border: none;
    transition: all var(--duration) var(--ease);
}

.btn--primary {
    background: var(--color-primary); color:#fff;
    box-shadow: 0 0 24px var(--color-primary-glow), 0 4px 12px rgba(0,0,0,0.25);
}
.btn--primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 0 40px rgba(37,99,235,0.2), 0 6px 16px rgba(0,0,0,0.3);
}
.btn--primary:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
}

.btn--ghost {
    background:transparent; color:var(--color-text-secondary);
    border:1px solid var(--color-border-hover);
}
.btn--ghost:hover { border-color:var(--color-primary); color:var(--color-primary); }
.btn--ghost:focus-visible { outline:2px solid var(--color-primary); outline-offset:3px; }

.btn--wide { width:100%; justify-content:center; }

.cta-micro {
    display:block; margin-top:var(--s-8);
    font-size:0.78rem; color:var(--color-text-muted);
    letter-spacing:0.01em;
}

/* ═══════════════════════════════════════════════
   PROBLEMS
   ═══════════════════════════════════════════════ */
.problem-item {
    padding: var(--s-16) 0;
    border-bottom: 1px solid var(--color-border);
    display: flex; gap: var(--s-16); align-items:baseline;
}
.problem-item:last-child { border-bottom:none; }
.problem-marker {
    color: var(--color-accent);
    font-family: var(--font-display);
    font-size: 1.2rem; font-weight:700;
    flex-shrink:0; line-height:1.75;
}
.problem-item strong { color: var(--color-text); font-weight:500; }
.problem-item p { margin:0; }

.callout {
    margin-top: var(--s-32);
    padding: var(--s-20) var(--s-24);
    background: var(--color-accent-glow);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-size: 0.9rem; line-height:1.7;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* ═══════════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════════ */
.services-grid {
    display: grid; gap: var(--s-20);
    margin-top: var(--s-32);
}
.service-card {
    padding: var(--s-32);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--duration) var(--ease);
}
.service-card:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}
.service-num {
    font-family: var(--font-display);
    font-size: 3.2rem; font-weight:700;
    color: rgba(37,99,235,0.3);
    line-height:1; margin-bottom: var(--s-12);
}

/* ═══════════════════════════════════════════════
   ABOUT (PHOTO)
   ═══════════════════════════════════════════════ */
.about-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--s-48);
    align-items: start;
    margin-top: var(--s-32);
}
.about-photo {
    width: 200px; height: 200px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    border: 2px solid var(--color-border-hover);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.about-text p { font-size: 0.95rem; }
.about-text strong { color: var(--color-text); font-weight: 600; }

@media (max-width:600px) {
    .about-grid { grid-template-columns:1fr; justify-items:center; text-align:center; }
    .about-photo { width:160px; height:160px; }
}

/* ═══════════════════════════════════════════════
   PILIERS (DIFFERENTIATION)
   ═══════════════════════════════════════════════ */
.piliers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: var(--s-24);
    margin-top: var(--s-32);
}
.pilier {
    padding: var(--s-24) var(--s-20);
    border-top: 2px solid var(--color-accent);
    background: linear-gradient(180deg, var(--color-accent-glow) 0%, transparent 50%);
}
.pilier h3 { font-size: 1.1rem; color: var(--color-accent); }
.pilier p { font-size:0.88rem; margin:0; }

/* ═══════════════════════════════════════════════
   PROCESS
   ═══════════════════════════════════════════════ */
.process-steps { margin-top: var(--s-32); position:relative; }
.process-steps::before {
    content:''; position:absolute;
    left:19px; top:28px; bottom:28px;
    width:1px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    opacity:0.25;
}
.step {
    display:flex; gap: var(--s-24);
    padding: var(--s-20) 0;
    position:relative;
}
.step-num {
    width:40px; height:40px;
    border-radius: var(--radius-full);
    background: var(--color-bg-elevated);
    border: 1px solid rgba(37,99,235,0.25);
    display:flex; align-items:center; justify-content:center;
    font-family: var(--font-display);
    font-weight:700; font-size:1rem;
    color: var(--color-primary);
    flex-shrink:0; position:relative; z-index:1;
}
.step-body h3 {
    font-family: var(--font-body); font-weight:500;
    font-size:0.95rem; color: var(--color-text);
    margin-bottom: var(--s-4);
}
.step-body h3 span {
    color: var(--color-text-muted);
    font-weight:300; font-size:0.82rem; margin-left:0.4em;
}
.step-body p { font-size:0.88rem; margin:0; }

/* ═══════════════════════════════════════════════
   PREUVES
   ═══════════════════════════════════════════════ */
.preuves-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--s-32);
    margin-top: var(--s-32);
}
.preuve-block ul { list-style:none; }
.preuve-block li {
    font-size:0.88rem; color:var(--color-text-secondary);
    padding:0.35em 0;
    display:flex; align-items:baseline; gap:0.6em;
}
.preuve-block li::before {
    content:'✓'; color:var(--color-accent);
    font-weight:600; flex-shrink:0;
}

/* ═══════════════════════════════════════════════
   FAQ
   ═══════════════════════════════════════════════ */
.faq-list { margin-top: var(--s-32); }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-q {
    width:100%; background:none; border:none;
    padding: var(--s-20) 0;
    font-family: var(--font-body);
    font-size:0.95rem; font-weight:400;
    color: var(--color-text);
    text-align:left;
    display:flex; justify-content:space-between; align-items:center; gap:var(--s-16);
    transition: color var(--duration);
}
.faq-q:hover { color: var(--color-primary); }
.faq-q:focus-visible { outline:2px solid var(--color-primary); outline-offset:2px; border-radius:2px; }
.faq-icon {
    font-size:1.3rem; color:var(--color-text-muted);
    transition: transform var(--duration) var(--ease), color var(--duration);
    flex-shrink:0; font-weight:300;
}
.faq-item.open .faq-icon { transform:rotate(45deg); color:var(--color-primary); }
.faq-a {
    max-height:0; overflow:hidden;
    transition: max-height 0.4s var(--ease), padding 0.4s var(--ease);
}
.faq-item.open .faq-a { max-height:300px; padding-bottom: var(--s-20); }
.faq-a p { font-size:0.9rem; margin:0; line-height:1.75; }

/* ═══════════════════════════════════════════════
   CTA FINAL + FORM
   ═══════════════════════════════════════════════ */
.cta-section {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 50%, var(--color-bg) 100%);
}
.cta-section h2 em { font-style:italic; color:var(--color-accent); }

.form-wrap { margin-top: var(--s-40); max-width:540px; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:var(--s-16); }
.form-group { display:flex; flex-direction:column; }
.form-group--full { grid-column:1/-1; }

.form-group label {
    font-size:0.78rem; font-weight:400;
    color:var(--color-text-muted); margin-bottom:var(--s-4);
    letter-spacing:0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.88rem; font-weight:300;
    outline:none;
    transition: border-color var(--duration), box-shadow var(--duration);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color:var(--color-text-muted); opacity:0.5; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.form-group select {
    appearance:none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%235a6578' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-position:right 1rem center; padding-right:2.5rem;
}
.form-group select option { background:var(--color-bg-card); color:var(--color-text); }
.form-group textarea { resize:vertical; min-height:90px; }

.form-submit { margin-top: var(--s-20); }
.form-footer {
    margin-top: var(--s-12);
    font-size:0.76rem; color:var(--color-text-muted);
    text-align:center; line-height:1.6;
}
.form-success {
    display:none; padding:var(--s-32);
    background: rgba(37,99,235,0.06);
    border:1px solid rgba(37,99,235,0.15);
    border-radius: var(--radius-md);
    text-align:center;
}
.form-success.show { display:block; }
.form-success p { color:var(--color-text); font-size:1rem; margin:0; }

@media(max-width:600px) { .form-grid { grid-template-columns:1fr; } }

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.site-footer {
    padding: var(--s-48) clamp(20px,5vw,40px);
    border-top: 1px solid var(--color-border);
}
.footer-inner {
    max-width: var(--max-width); margin:0 auto;
    display:flex; flex-wrap:wrap;
    justify-content:space-between; align-items:center; gap:var(--s-16);
}
.footer-brand {
    font-family: var(--font-display);
    font-size:1rem; font-weight:700; color:var(--color-text);
}
.footer-brand span {
    display:block; font-family:var(--font-body);
    font-size:0.75rem; font-weight:300;
    color:var(--color-text-muted); margin-top:0.2em;
}
.footer-links { display:flex; gap:var(--s-20); align-items:center; }
.footer-links a {
    font-size:0.82rem; color:var(--color-text-muted);
    transition: color var(--duration);
}
.footer-links a:hover { color:var(--color-primary); }
.footer-legal {
    width:100%; text-align:center;
    margin-top:var(--s-24); padding-top:var(--s-24);
    border-top:1px solid var(--color-border);
    font-size:0.72rem; color:var(--color-text-muted);
}

.linkedin-icon {
    display:inline-flex; align-items:center; justify-content:center;
    width:30px; height:30px; border-radius:var(--radius-sm);
    background:rgba(37,99,235,0.08); transition:background var(--duration);
}
.linkedin-icon:hover { background:rgba(37,99,235,0.18); }
.linkedin-icon svg { width:14px; height:14px; fill:var(--color-primary); }

@media(max-width:600px) {
    .footer-inner { flex-direction:column; text-align:center; }
    .footer-links { justify-content:center; }
}