/* ═══════════════════════════════════════════════════
   PRATIK-IT v4 — main.css
   Thème sombre · Réseau & Cybersécurité
═══════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg:       #080E1A;
  --bg2:      #0C1525;
  --bg3:      #111D30;
  --bg4:      #162038;
  --blue:     #1D6FEB;
  --blue-l:   #EBF3FF;
  --blue-d:   #0C447C;
  --cyan:     #00C8FF;
  --green:    #00E5A0;
  --orange:   #F97316;
  --red:      #EF4444;
  --purple:   #8B5CF6;
  --border:   rgba(29,111,235,.15);
  --border2:  rgba(255,255,255,.06);
  --text:     #E2E8F0;
  --text2:    #7B9EC7;
  --text3:    #3D5A7A;
  --mono:     'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Sora', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; }

/* ── BOUTONS ─────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 24px; border-radius: 8px; font-size: .88rem; font-weight: 600; border: none; cursor: pointer; transition: all .2s; font-family: 'Sora', sans-serif; line-height: 1; white-space: nowrap; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1558C0; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(29,111,235,.35); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text2); }
.btn-outline:hover { border-color: var(--blue); color: var(--text); background: rgba(29,111,235,.08); }
.btn-cyan { background: var(--cyan); color: #080E1A; font-weight: 700; }
.btn-cyan:hover { background: #00a8d4; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,200,255,.3); }
.btn-sm { padding: 7px 16px; font-size: .8rem; border-radius: 7px; }
.btn-lg { padding: 14px 32px; font-size: .97rem; border-radius: 10px; }

/* ── NAVBAR ──────────────────────────────────────── */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: 68px; background: rgba(8,14,26,.95); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 0 2.5rem; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo img { width: 42px; height: 42px; border-radius: 10px; object-fit: cover; }
.nav-logo-text { display: flex; flex-direction: column; line-height: 1; }
.nav-logo-text .brand { font-size: 1.05rem; font-weight: 800; letter-spacing: -.01em; color: #fff; }
.nav-logo-text .brand .d { color: var(--blue); }
.nav-logo-text .brand .it { color: var(--orange); }
.nav-logo-text .tagline { font-size: .52rem; font-family: var(--mono); color: var(--text3); margin-top: 3px; letter-spacing: .06em; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { color: var(--text2); font-size: .82rem; font-weight: 500; padding: 7px 12px; border-radius: 7px; transition: all .15s; white-space: nowrap; }
.nav-links a:hover { color: var(--text); background: var(--border2); }
.nav-links a.active { color: #fff; background: rgba(29,111,235,.12); }
.nav-cta { background: var(--blue) !important; color: #fff !important; border-radius: 8px !important; margin-left: 8px; padding: 8px 16px !important; }
.nav-cta:hover { background: #1558C0 !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; background: none; border: none; }
.hamburger span { width: 22px; height: 2px; background: var(--text2); border-radius: 2px; transition: all .3s; display: block; }

/* ── GRILLE/LAYOUT ───────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 2rem; }
section { padding: 88px 2rem; }
.sec-label { font-family: var(--mono); font-size: .68rem; font-weight: 700; color: var(--cyan); letter-spacing: .14em; text-transform: uppercase; display: block; margin-bottom: .6rem; }
.sec-title { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; margin-bottom: .85rem; color: #fff; }
.sec-sub { font-size: .95rem; color: var(--text2); max-width: 560px; line-height: 1.8; }

/* ── BADGES ──────────────────────────────────────── */
.badge { display: inline-flex; align-items: center; font-size: .65rem; padding: 2px 9px; border-radius: 20px; font-weight: 700; letter-spacing: .03em; white-space: nowrap; }
.badge-cyber { background: rgba(239,68,68,.15); color: #FCA5A5; border: 1px solid rgba(239,68,68,.25); }
.badge-reseau { background: rgba(29,111,235,.15); color: #93BBFF; border: 1px solid rgba(29,111,235,.25); }
.badge-pfe { background: rgba(139,92,246,.15); color: #C4B5FD; border: 1px solid rgba(139,92,246,.25); }
.badge-new { background: rgba(0,229,160,.15); color: #6EE7B7; border: 1px solid rgba(0,229,160,.25); }
.badge-soon { background: var(--border2); color: var(--text3); border: 1px solid var(--border2); }

/* ── PROJECT CARDS ───────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,1fr)); gap: 20px; }
.card { background: var(--bg2); border: 1px solid var(--border2); border-radius: 14px; overflow: hidden; transition: all .25s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-5px); border-color: var(--border); box-shadow: 0 16px 48px rgba(0,0,0,.4); }
.card-img { height: 180px; background: var(--bg3); overflow: hidden; position: relative; display: flex; align-items: center; justify-content: center; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card:hover .card-img img { transform: scale(1.05); }
.card-img-placeholder { font-size: 3.5rem; color: var(--border); }
.card-bar { position: absolute; bottom: 0; left: 0; right: 0; height: 2px; }
.card-body { padding: 16px 18px; flex: 1; display: flex; flex-direction: column; }
.card-cats { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 9px; }
.card-title { font-size: .9rem; font-weight: 700; line-height: 1.4; margin-bottom: 7px; color: var(--text); }
.card-excerpt { font-size: .78rem; color: var(--text2); line-height: 1.65; flex: 1; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border2); padding-top: 10px; margin-top: auto; }
.card-date { font-size: .69rem; color: var(--text3); font-family: var(--mono); }
.card-link { font-size: .78rem; font-weight: 600; color: var(--cyan); display: flex; align-items: center; gap: 5px; transition: gap .15s; }
.card-link:hover { gap: 8px; }

/* ── FILTER BAR ──────────────────────────────────── */
.filter-wrap { background: var(--bg2); border-bottom: 1px solid var(--border2); position: sticky; top: 68px; z-index: 100; }
.filter-bar { max-width: 1140px; margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; overflow-x: auto; scrollbar-width: none; }
.filter-bar::-webkit-scrollbar { display: none; }
.filter-tab { display: flex; align-items: center; gap: 8px; padding: 15px 18px; font-size: .82rem; font-weight: 500; cursor: pointer; background: transparent; color: var(--text3); font-family: 'Sora', sans-serif; border: none; border-bottom: 2px solid transparent; white-space: nowrap; transition: all .18s; flex-shrink: 0; }
.filter-tab:hover { color: var(--text2); }
.filter-tab.active { color: var(--cyan); border-bottom-color: var(--cyan); }
.filter-count { min-width: 20px; height: 18px; padding: 0 5px; border-radius: 9px; font-size: .65rem; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; background: var(--border2); color: var(--text3); transition: all .18s; }
.filter-tab.active .filter-count { background: rgba(0,200,255,.15); color: var(--cyan); }
.filter-sep { width: 1px; height: 18px; background: var(--border2); flex-shrink: 0; }

/* ── FORMS ───────────────────────────────────────── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: .79rem; font-weight: 600; color: var(--text2); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 14px; background: var(--bg3); border: 1px solid var(--border2); border-radius: 8px; font-size: .86rem; font-family: 'Sora', sans-serif; color: var(--text); outline: none; transition: border-color .2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--blue); }
.form-group select option { background: var(--bg3); }
.form-group textarea { min-height: 110px; resize: vertical; }
.btn-submit { width: 100%; padding: 12px; background: var(--blue); color: #fff; border: none; border-radius: 9px; font-size: .9rem; font-weight: 700; cursor: pointer; transition: all .2s; font-family: 'Sora', sans-serif; }
.btn-submit:hover { background: #1558C0; transform: translateY(-1px); }

/* ── PAGE HERO ───────────────────────────────────── */
.page-hero { background: var(--bg); padding: 110px 2rem 56px; border-bottom: 1px solid var(--border2); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(var(--border2) 1px, transparent 1px), linear-gradient(90deg, var(--border2) 1px, transparent 1px); background-size: 52px 52px; pointer-events: none; }
.page-hero-inner { max-width: 1140px; margin: 0 auto; position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 4.5vw, 2.8rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: .7rem; line-height: 1.1; }
.page-hero p { color: var(--text2); font-size: .97rem; line-height: 1.8; max-width: 600px; }

/* ── SOCIAL STRIP ────────────────────────────────── */
.social-strip { background: var(--bg2); border-bottom: 1px solid var(--border2); padding: 14px 2rem; }
.social-strip-inner { max-width: 1140px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
.social-card { display: flex; align-items: center; gap: 10px; padding: 10px 13px; background: var(--border2); border: 1px solid var(--border); border-radius: 10px; transition: all .2s; text-decoration: none; }
.social-card:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.12); }
.social-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1rem; }
.social-name { font-size: .82rem; font-weight: 600; color: var(--text); }
.social-handle { font-size: .69rem; color: var(--text3); margin-top: 1px; }

/* ── FOOTER ──────────────────────────────────────── */
.footer { background: var(--bg2); border-top: 1px solid var(--border2); padding: 56px 2rem 24px; }
.footer-inner { max-width: 1140px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: .75rem; text-decoration: none; }
.footer-logo img { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; }
.footer-logo .brand { font-size: 1.05rem; font-weight: 800; color: #fff; }
.footer-logo .brand .d { color: var(--blue); }
.footer-logo .brand .it { color: var(--orange); }
.footer-brand p { font-size: .78rem; color: var(--text3); line-height: 1.75; max-width: 220px; }
.footer-col h4 { font-size: .75rem; font-weight: 700; color: var(--text2); margin-bottom: .75rem; text-transform: uppercase; letter-spacing: .07em; }
.footer-col a { display: block; font-size: .78rem; color: var(--text3); margin-bottom: 7px; transition: color .15s; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border2); padding-top: 1.25rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; max-width: 1140px; margin: 0 auto; }
.footer-bottom p { font-size: .75rem; color: var(--text3); }

/* ── UTILITAIRES ─────────────────────────────────── */
#scroll-top { position: fixed; bottom: 24px; left: 24px; width: 40px; height: 40px; background: var(--bg2); border: 1px solid var(--border); border-radius: 9px; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--text3); font-size: .9rem; opacity: 0; pointer-events: none; transition: all .3s; z-index: 99; }
#scroll-top.visible { opacity: 1; pointer-events: all; }
#scroll-top:hover { border-color: var(--cyan); color: var(--cyan); }
#toast { position: fixed; bottom: 24px; right: 24px; background: var(--bg2); color: var(--text); border: 1px solid var(--border); padding: 12px 18px; border-radius: 10px; font-size: .82rem; font-weight: 500; transform: translateY(70px); opacity: 0; transition: all .35s; z-index: 999; max-width: 300px; display: flex; align-items: center; gap: 8px; }
#toast.show { transform: translateY(0); opacity: 1; }
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.75); z-index: 500; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; pointer-events: none; transition: opacity .25s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 18px; width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto; transform: scale(.95); transition: transform .25s; }
.modal-overlay.open .modal-box { transform: scale(1); }

/* AOS */
[data-aos] { opacity: 0; transition-property: opacity, transform; transition-duration: .65s; transition-timing-function: cubic-bezier(.16,1,.3,1); }
[data-aos="fade-up"] { transform: translateY(28px); }
[data-aos="fade-left"] { transform: translateX(28px); }
[data-aos="fade-right"] { transform: translateX(-28px); }
[data-aos].aos-animate { opacity: 1; transform: none; }
[data-aos-delay="100"] { transition-delay: .1s; }
[data-aos-delay="200"] { transition-delay: .2s; }
[data-aos-delay="300"] { transition-delay: .3s; }
[data-aos-delay="400"] { transition-delay: .4s; }

/* RESPONSIVE */
@media(max-width:1024px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media(max-width:768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(8,14,26,.98); padding: 1rem; gap: 2px; border-bottom: 1px solid var(--border2); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 14px; }
  .hamburger { display: flex; }
  .social-strip-inner { grid-template-columns: 1fr 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  section { padding: 64px 1.25rem; }
  .page-hero { padding: 100px 1.25rem 48px; }
}
@media(max-width:480px) {
  .social-strip-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}