/* PRATIK-IT — main.css v3 */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --navy:#0A1628; --navy2:#0D1E35; --navy3:#0F2D5A;
  --blue:#1D6FEB; --blue-l:#EBF3FF; --blue-d:#0C447C;
  --orange:#F97316; --orange-l:#FFF3E8;
  --green:#10B981; --green-l:#DCFCE7;
  --red:#DC2626; --red-l:#FEE2E2;
  --purple:#7C3AED; --purple-l:#EDE9FE;
  --teal:#0D9488; --teal-l:#CCFBF1;
  --amber:#B45309; --amber-l:#FEF3C7;
  --g1:#F8FAFC; --g2:#E2E8F0; --g3:#94A3B8;
  --g4:#64748B; --g5:#334155; --g6:#0F172A;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Sora', sans-serif; background: #FAFBFF; color: var(--g6); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 24px; border-radius: 10px; font-size: .9rem; font-weight: 600; border: none; cursor: pointer; transition: all .2s; font-family: 'Sora', sans-serif; line-height: 1; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1558C0; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(29,111,235,.3); }
.btn-ghost { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.15); color: #CBD5E1; }
.btn-ghost:hover { background: rgba(255,255,255,.13); color: #fff; }
.btn-outline { background: transparent; border: 1.5px solid var(--g2); color: var(--g5); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-l); }
.btn-orange { background: var(--orange); color: #fff; }
.btn-orange:hover { background: #EA6C00; transform: translateY(-1px); }
.btn-sm { padding: 7px 16px; font-size: .82rem; border-radius: 8px; }
.btn-lg { padding: 14px 32px; font-size: 1rem; border-radius: 12px; }

/* NAVBAR */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 200; height: 64px; background: rgba(10,22,40,.97); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(29,111,235,.12); padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; flex-direction: column; line-height: 1; }
.nav-logo .brand { font-size: 1.15rem; font-weight: 700; letter-spacing: -.01em; }
.nav-logo .brand .p { color: #fff; } .nav-logo .brand .d { color: var(--blue); } .nav-logo .brand .it { color: var(--orange); }
.nav-logo .tagline { font-size: .55rem; font-family: 'JetBrains Mono', monospace; color: #475569; margin-top: 3px; letter-spacing: .05em; }
.nav-links { display: flex; align-items: center; gap: 0; }
.nav-links a { color: #94A3B8; font-size: .82rem; font-weight: 500; padding: 8px 10px; border-radius: 7px; transition: all .15s; white-space: nowrap; }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,.07); }
.nav-links a.active { color: #fff; background: rgba(255,255,255,.05); }
.nav-links .nav-cta { background: var(--blue); color: #fff !important; border-radius: 8px; margin-left: 6px; padding: 8px 14px; }
.nav-links .nav-cta:hover { background: #1558C0; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.hamburger span { width: 22px; height: 2px; background: #94A3B8; border-radius: 2px; transition: all .3s; }

/* SOCIAL STRIP */
.social-strip { background: var(--navy2); border-top: 1px solid rgba(29,111,235,.08); border-bottom: 1px solid rgba(29,111,235,.08); padding: 16px 2rem; }
.social-strip-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
.social-card { display: flex; align-items: center; gap: 10px; padding: 11px 13px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07); border-radius: 10px; transition: all .2s; }
.social-card:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); }
.social-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.social-name { font-size: .82rem; font-weight: 600; color: #E2E8F0; }
.social-handle { font-size: .7rem; color: #64748B; margin-top: 1px; }

/* FOOTER */
.footer { background: var(--navy); border-top: 1px solid rgba(29,111,235,.09); padding: 52px 2rem 22px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2.5rem; }
.footer-logo { font-size: 1.2rem; font-weight: 700; display: block; margin-bottom: .7rem; }
.footer-logo .p { color: #fff; } .footer-logo .d { color: var(--blue); } .footer-logo .it { color: var(--orange); }
.footer-brand p { font-size: .79rem; color: #64748B; line-height: 1.75; max-width: 220px; }
.footer-col h4 { font-size: .78rem; font-weight: 600; color: #94A3B8; margin-bottom: .75rem; text-transform: uppercase; letter-spacing: .06em; }
.footer-col a { display: block; font-size: .77rem; color: #64748B; margin-bottom: 6px; transition: color .15s; }
.footer-col a:hover { color: #CBD5E1; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.06); padding-top: 1.25rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; max-width: 1100px; margin: 0 auto; }
.footer-bottom p { font-size: .76rem; color: #475569; }

/* LAYOUT */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
section { padding: 80px 2rem; }
.sec-label { font-family: 'JetBrains Mono', monospace; font-size: .7rem; font-weight: 700; color: var(--blue); letter-spacing: .12em; text-transform: uppercase; margin-bottom: .6rem; display: block; }
.sec-title { font-size: clamp(1.6rem, 4vw, 2.25rem); font-weight: 700; letter-spacing: -.025em; line-height: 1.15; margin-bottom: .75rem; }
.sec-sub { font-size: .95rem; color: var(--g4); max-width: 560px; line-height: 1.75; }
.section-dark { background: var(--navy); }
.section-alt { background: var(--g1); }

/* BADGES */
.badge { display: inline-flex; align-items: center; font-size: .67rem; padding: 2px 9px; border-radius: 20px; font-weight: 600; line-height: 1.4; white-space: nowrap; }
.badge-cyber { background: var(--red-l); color: var(--red); }
.badge-reseau { background: var(--blue-l); color: var(--blue-d); }
.badge-pfe { background: var(--purple-l); color: var(--purple); }
.badge-ebook { background: var(--teal-l); color: #065F52; }
.badge-new { background: var(--orange-l); color: var(--orange); }
.badge-soon { background: var(--g2); color: var(--g4); }

/* PROJECT CARDS */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.project-card { background: #fff; border: 1px solid var(--g2); border-radius: 16px; overflow: hidden; transition: all .25s; display: flex; flex-direction: column; }
.project-card:hover { transform: translateY(-5px); box-shadow: 0 14px 40px rgba(0,0,0,.1); border-color: #CBD5E1; }
.card-img { height: 170px; background: var(--g1); display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.project-card:hover .card-img img { transform: scale(1.04); }
.card-img .ph { font-size: 3.5rem; color: var(--g2); }
.card-type-bar { position: absolute; bottom: 0; left: 0; right: 0; height: 3px; }
.card-body { padding: 15px 17px; 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(--g6); }
.card-excerpt { font-size: .77rem; color: var(--g4); line-height: 1.65; flex: 1; margin-bottom: 13px; 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 #F1F5F9; padding-top: 10px; margin-top: auto; }
.card-date { font-size: .7rem; color: var(--g3); font-family: 'JetBrains Mono', monospace; }
.card-link { font-size: .79rem; font-weight: 600; color: var(--blue); display: flex; align-items: center; gap: 5px; transition: all .15s; }
.card-link:hover { color: #1558C0; gap: 8px; }

/* FILTER BAR */
.filter-bar-wrap { background: #fff; border-bottom: 1px solid var(--g2); position: sticky; top: 64px; z-index: 100; }
.filter-bar { max-width: 1100px; 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: 16px 18px; font-size: .84rem; font-weight: 500; cursor: pointer; background: transparent; color: var(--g4); font-family: 'Sora', sans-serif; border: none; border-bottom: 3px solid transparent; white-space: nowrap; transition: all .18s; flex-shrink: 0; }
.filter-tab:hover { color: var(--g6); background: var(--g1); }
.filter-tab.active { color: var(--blue); font-weight: 600; border-bottom-color: var(--blue); }
.filter-count { min-width: 22px; height: 20px; padding: 0 6px; border-radius: 10px; font-size: .69rem; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; transition: all .18s; }
.fc-all { background: var(--blue-l); color: var(--blue-d); }
.fc-cyber { background: var(--red-l); color: var(--red); }
.fc-reseau { background: var(--blue-l); color: var(--blue-d); }
.fc-pfe { background: var(--purple-l); color: var(--purple); }
.filter-tab.active .filter-count, .filter-tab:hover .filter-count { color: #fff; }
.filter-tab.active .fc-all, .filter-tab:hover .fc-all { background: var(--blue); }
.filter-tab.active .fc-cyber, .filter-tab:hover .fc-cyber { background: var(--red); }
.filter-tab.active .fc-reseau, .filter-tab:hover .fc-reseau { background: var(--blue); }
.filter-tab.active .fc-pfe, .filter-tab:hover .fc-pfe { background: var(--purple); }
.filter-sep { width: 1px; height: 22px; background: var(--g2); flex-shrink: 0; }

/* FORMS */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; font-size: .81rem; font-weight: 600; color: var(--g5); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 14px; background: var(--g1); border: 1.5px solid var(--g2); border-radius: 9px; font-size: .87rem; font-family: 'Sora', sans-serif; color: var(--g6); outline: none; transition: border-color .2s, box-shadow .2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--blue); background: #fff; box-shadow: 0 0 0 3px rgba(29,111,235,.08); }
.form-group textarea { min-height: 110px; resize: vertical; }
.btn-submit { width: 100%; padding: 12px; background: var(--blue); color: #fff; border: none; border-radius: 10px; font-size: .93rem; font-weight: 600; cursor: pointer; transition: all .2s; font-family: 'Sora', sans-serif; }
.btn-submit:hover { background: #1558C0; transform: translateY(-1px); }

/* PAGE HERO GENERIC */
.page-hero { background: var(--navy); padding: 104px 2rem 52px; border-bottom: 1px solid rgba(29,111,235,.1); }
.page-hero-inner { max-width: 1100px; margin: 0 auto; }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 4.5vw, 2.8rem); font-weight: 700; letter-spacing: -.025em; margin-bottom: .75rem; line-height: 1.1; }
.page-hero p { color: #6B8FAD; font-size: .96rem; line-height: 1.8; max-width: 620px; }

/* AOS ANIMATIONS */
[data-aos] { opacity: 0; transition-property: opacity, transform; transition-duration: .6s; 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; }
[data-aos-delay="500"] { transition-delay: .5s; }

/* TOAST & SCROLL TOP */
#scroll-top { position: fixed; bottom: 24px; left: 24px; width: 40px; height: 40px; background: var(--navy2); border: 1px solid rgba(29,111,235,.2); border-radius: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; color: #64748B; font-size: .95rem; opacity: 0; pointer-events: none; transition: all .3s; z-index: 99; }
#scroll-top.visible { opacity: 1; pointer-events: all; }
#scroll-top:hover { background: var(--navy3); color: #fff; }
#toast { position: fixed; bottom: 24px; right: 24px; background: var(--navy2); color: #E2E8F0; border: 1px solid rgba(29,111,235,.3); padding: 12px 18px; border-radius: 10px; font-size: .83rem; 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 */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); 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: #fff; border-radius: 18px; width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto; transition: transform .25s; transform: scale(.95); }
.modal-overlay.open .modal-box { transform: scale(1); }

/* RESPONSIVE */
@media (max-width: 1100px) { .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; } }
@media (max-width: 900px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: rgba(10,22,40,.98); padding: 1rem; gap: 4px; border-bottom: 1px solid rgba(29,111,235,.1); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 14px; }
  .hamburger { display: flex; }
  .social-strip-inner { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  section { padding: 60px 1.25rem; }
}
@media (max-width: 480px) {
  .social-strip-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .btn-lg { padding: 12px 24px; font-size: .9rem; }
}