/* ============================================================
   Samuel Kaci — samuelkaci.com
   Design system : premium, AI, light + glassmorphism + green
   ============================================================ */

:root {
  /* Greens */
  --green-400: #22c55e;
  --green-500: #16a34a;
  --green-600: #15803d;
  --green-700: #166534;
  --green-glow: rgba(22, 163, 74, 0.30);
  --green-soft: rgba(22, 163, 74, 0.08);

  /* Light neutrals */
  --bg: #eef3ef;
  --text: #0f1a14;
  --text-soft: #50605a;
  --text-dim: #8a978f;

  /* Glass */
  --glass: rgba(255, 255, 255, 0.26);
  --glass-strong: rgba(255, 255, 255, 0.50);
  --glass-border: rgba(255, 255, 255, 0.70);
  --hairline: rgba(15, 26, 20, 0.08);
  --border-green: rgba(34, 197, 94, 0.45);
  --neon: 0 0 0 1px rgba(34, 197, 94, 0.22), 0 0 18px rgba(34, 197, 94, 0.12);
  --neon-hover: 0 0 0 1px rgba(34, 197, 94, 0.40), 0 0 26px rgba(34, 197, 94, 0.24);

  --radius: 20px;
  --radius-sm: 13px;
  --maxw: 1180px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;

  --shadow: 0 18px 50px rgba(15, 40, 25, 0.10);
  --shadow-lg: 0 30px 70px rgba(15, 40, 25, 0.14);
  --shadow-green: 0 20px 50px rgba(22, 163, 74, 0.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Ambient background : soft green mesh blobs + faint grid */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(48% 42% at 82% -8%, rgba(34, 197, 94, 0.22), transparent 62%),
    radial-gradient(42% 40% at -5% 18%, rgba(16, 185, 129, 0.16), transparent 60%),
    radial-gradient(50% 48% at 50% 112%, rgba(22, 163, 74, 0.16), transparent 60%),
    linear-gradient(180deg, #f3f7f4, #e9efea);
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(15, 26, 20, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 26, 20, 0.04) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(circle at 50% 28%, black, transparent 82%);
  -webkit-mask-image: radial-gradient(circle at 50% 28%, black, transparent 82%);
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Typography ---------- */
h1, h2, h3 { line-height: 1.12; font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--green-600); padding: 7px 14px;
  border: 1px solid var(--border-green); border-radius: 999px;
  background: rgba(255, 255, 255, 0.6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  margin-bottom: 22px; font-weight: 600;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-500); box-shadow: 0 0 10px var(--green-500); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:.4;transform:scale(.8);} }

.gradient-text {
  background: linear-gradient(120deg, #0f1a14 10%, var(--green-500) 55%, var(--green-700));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

.section { padding: 110px 0; position: relative; }
.section-head { max-width: 660px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 16px; }
.section-head p { color: var(--text-soft); font-size: 1.08rem; }

/* ---------- Glass utility ---------- */
.glass {
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
}

/* ---------- Header / Nav ---------- */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; transition: all .35s ease; padding: 18px 0; }
.header.scrolled {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(18px) saturate(160%); -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--glass-border); padding: 11px 0;
  box-shadow: 0 8px 30px rgba(15, 40, 25, 0.06);
}
.nav { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.05rem; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  font-family: var(--mono); font-weight: 700; font-size: .95rem; color: #fff;
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  box-shadow: 0 6px 18px var(--green-glow);
}
.logo span:not(.logo-mark) { color: var(--text-dim); font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a { color: var(--text-soft); font-size: .94rem; font-weight: 500; padding: 9px 15px; border-radius: 10px; transition: all .25s; }
.nav-links a:hover, .nav-links a.active { color: var(--green-700); background: var(--green-soft); }
.nav-links a.btn-primary, .nav-links a.btn-primary:hover { color: #fff; background: linear-gradient(135deg, var(--green-400), var(--green-600)); }
.nav-links a.btn-ghost { color: var(--text); }
.nav-cta { margin-left: 10px; }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); cursor: pointer; font-size: 1.6rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: .96rem;
  cursor: pointer; border: 1px solid transparent; transition: all .28s ease; white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: linear-gradient(135deg, var(--green-400), var(--green-600)); color: #fff; box-shadow: 0 10px 26px var(--green-glow); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 38px var(--green-glow); }
.btn-ghost { background: var(--glass-strong); color: var(--text); border-color: var(--glass-border); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn-ghost:hover { border-color: var(--border-green); color: var(--green-700); transform: translateY(-3px); box-shadow: var(--shadow); }
.btn-lg { padding: 16px 34px; font-size: 1.02rem; }

/* ---------- Hero ---------- */
.hero { padding: 180px 0 110px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); margin-bottom: 22px; }
.hero .lead { font-size: 1.18rem; color: var(--text-soft); max-width: 540px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-meta { display: flex; gap: 34px; flex-wrap: wrap; }
.hero-meta .stat .num { font-size: 1.7rem; font-weight: 700; color: var(--green-700); }
.hero-meta .stat .lab { font-size: .85rem; color: var(--text-dim); }

/* Hero visual : terminal (kept dark for contrast / AI feel) */
.terminal {
  background: linear-gradient(160deg, #0d1713, #0a120e);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden; font-family: var(--mono); position: relative;
}
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; border-bottom: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.02); }
.terminal-bar i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.terminal-bar i:nth-child(1){ background:#ff5f56; } .terminal-bar i:nth-child(2){ background:#ffbd2e; } .terminal-bar i:nth-child(3){ background:#27c93f; }
.terminal-bar .title { margin-left: 10px; font-size: .78rem; color: #6c7a71; }
.terminal-body { padding: 22px; font-size: .86rem; line-height: 1.9; color: #d6e3da; }
.terminal-body .l { display: block; white-space: pre-wrap; }
.t-com { color: #6c7a71; } .t-key { color: #4ade80; } .t-str { color: #9ae6b4; } .t-fn { color: #7dd3fc; }
.cursor { display:inline-block; width:8px; height:1.05em; background:#4ade80; vertical-align:-2px; animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 0%,50%{opacity:1;} 50.01%,100%{opacity:0;} }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid var(--border-green);
  border-radius: var(--radius); padding: 30px;
  box-shadow: var(--neon), 0 14px 40px rgba(15, 40, 25, 0.06);
  transition: all .3s ease; position: relative; overflow: hidden;
}
.card::after { content:""; position:absolute; inset:0 0 auto 0; height:1px; background:linear-gradient(90deg, transparent, rgba(255,255,255,.85), transparent); }
.card:hover { transform: translateY(-6px); border-color: rgba(34,197,94,.6); box-shadow: var(--neon-hover), 0 22px 50px rgba(15, 40, 25, 0.10); }
.card .ic { width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center; background: var(--green-soft); border: 1px solid var(--border-green); margin-bottom: 20px; color: var(--green-600); }
.card .ic svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.22rem; margin-bottom: 11px; }
.card p { color: var(--text-soft); font-size: .96rem; }
.card .tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

.tag { font-family: var(--mono); font-size: .76rem; color: var(--green-700); padding: 5px 11px; border: 1px solid var(--border-green); border-radius: 999px; background: var(--green-soft); }

/* Dual axis feature card */
.axis-card { padding: 38px; }
.axis-card.featured { background: var(--glass-strong); border-color: rgba(34,197,94,.55); box-shadow: var(--neon-hover), 0 18px 45px rgba(15, 40, 25, 0.08); }
.axis-card .badge { position: absolute; top: 22px; right: 22px; font-family: var(--mono); font-size: .66rem; text-transform: uppercase; letter-spacing: .1em; color: #fff; padding: 6px 12px; border-radius: 999px; background: linear-gradient(135deg, var(--green-400), var(--green-600)); box-shadow: 0 6px 16px var(--green-glow); }
.axis-card h3 { font-size: 1.5rem; margin-bottom: 14px; }
.axis-card ul { list-style: none; margin: 22px 0; }
.axis-card li { display: flex; gap: 11px; padding: 8px 0; color: var(--text-soft); font-size: .98rem; }
.axis-card li svg { width: 19px; height: 19px; color: var(--green-600); flex-shrink: 0; margin-top: 3px; }

/* ---------- Process / steps ---------- */
.steps { counter-reset: step; display: grid; gap: 20px; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 22px; align-items: start;
  background: var(--glass); backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid var(--border-green); border-radius: var(--radius); padding: 26px 28px; box-shadow: var(--neon), 0 14px 40px rgba(15, 40, 25, 0.06); transition: all .3s; }
.step:hover { border-color: rgba(34,197,94,.6); transform: translateY(-4px); box-shadow: var(--neon-hover), 0 22px 50px rgba(15, 40, 25, 0.10); }
.step .n { counter-increment: step; width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-family: var(--mono); font-weight: 700; font-size: 1.2rem; color: #fff; background: linear-gradient(135deg, var(--green-400), var(--green-600)); box-shadow: 0 8px 18px var(--green-glow); }
.step .n::before { content: "0" counter(step); }
.step h3 { font-size: 1.16rem; margin-bottom: 7px; }
.step p { color: var(--text-soft); font-size: .96rem; }

/* ---------- Timeline ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--green-500), rgba(22,163,74,0)); }
.tl-item { position: relative; padding: 0 0 42px 30px; }
.tl-item::before { content: ""; position: absolute; left: -34px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--green-500); box-shadow: 0 0 0 4px rgba(22,163,74,.12); }
.tl-date { font-family: var(--mono); font-size: .82rem; color: var(--green-600); margin-bottom: 6px; font-weight: 600; }
.tl-item h3 { font-size: 1.18rem; margin-bottom: 4px; }
.tl-role { color: var(--text-dim); font-size: .92rem; margin-bottom: 12px; }
.tl-item ul { list-style: none; }
.tl-item li { color: var(--text-soft); font-size: .95rem; padding: 4px 0 4px 18px; position: relative; }
.tl-item li::before { content: "▹"; position: absolute; left: 0; color: var(--green-500); }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { padding: 170px 0 70px; text-align: center; }
.page-hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 18px; }
.page-hero p { color: var(--text-soft); font-size: 1.1rem; max-width: 620px; margin: 0 auto; }

/* ---------- Stack pills ---------- */
.stack-row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.stack-pill {
  font-family: var(--mono); font-size: .88rem; color: var(--text-soft);
  padding: 10px 18px; border: 1px solid var(--glass-border); border-radius: 999px;
  background: var(--glass-strong); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow); transition: all .25s;
}
.stack-pill:hover { color: var(--green-700); border-color: var(--border-green); transform: translateY(-3px); }

/* ---------- Skill bars ---------- */
.skill-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 40px; }
.skill-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.skill-top .name { font-weight: 600; font-size: .98rem; }
.skill-top .lvl { font-family: var(--mono); font-size: .76rem; color: var(--green-600); }
.skill-bar { height: 8px; border-radius: 999px; background: rgba(15,26,20,.07); overflow: hidden; }
.skill-bar span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--green-400), var(--green-600)); }

/* ---------- Pills list (certs / langues) ---------- */
.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { display: inline-flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-soft);
  padding: 9px 15px; border: 1px solid var(--hairline); border-radius: 12px; background: rgba(255,255,255,.5); }
.chip svg { width: 16px; height: 16px; color: var(--green-600); }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--glass-strong);
  backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid var(--border-green); border-radius: 26px; padding: 60px 50px; text-align: center;
  box-shadow: var(--neon-hover), 0 24px 55px rgba(15, 40, 25, 0.10); position: relative; overflow: hidden;
}
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; }
.cta-band p { color: var(--text-soft); max-width: 520px; margin: 0 auto 30px; font-size: 1.08rem; }
.cta-band .hero-actions { justify-content: center; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: stretch; }
.contact-card { padding: 40px; }
.contact-card .big { font-size: 1.4rem; font-weight: 700; margin: 8px 0 6px; color: var(--green-700); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .85rem; color: var(--text-soft); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 11px;
  background: rgba(255,255,255,.7); border: 1px solid var(--hairline); color: var(--text);
  font-family: var(--font); font-size: .96rem; transition: border .25s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green-500); box-shadow: 0 0 0 4px rgba(22,163,74,.1); }
.field textarea { min-height: 130px; resize: vertical; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--hairline); padding: 60px 0 34px; margin-top: 40px; background: rgba(255,255,255,.35); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
.footer-brand { max-width: 320px; }
.footer-brand p { color: var(--text-soft); font-size: .95rem; margin-top: 14px; }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-dim); margin-bottom: 14px; }
.footer-col a { display: block; color: var(--text-soft); font-size: .95rem; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--green-700); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; border-top: 1px solid var(--hairline); padding-top: 24px; color: var(--text-dim); font-size: .88rem; }

/* ---------- Scroll reveal ---------- */
/* Visible par defaut. Le JS ajoute .pre (etat masque) uniquement aux elements a animer. */
.reveal { transition: opacity .7s ease, transform .7s ease; }
.reveal.pre { opacity: 0; transform: translateY(28px); }
.reveal.pre.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .grid-2, .grid-3, .grid-4, .contact-grid, .skill-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(80%, 320px); flex-direction: column; align-items: flex-start; gap: 6px;
    background: rgba(255,255,255,.9); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
    padding: 100px 26px 40px; transform: translateX(100%); transition: transform .35s ease; border-left: 1px solid var(--glass-border);
  }
  .nav-links.open { transform: none; }
  .nav-links a { width: 100%; padding: 13px 14px; }
  .nav-toggle { display: block; z-index: 1001; }
  .section { padding: 80px 0; }
  .cta-band { padding: 44px 24px; }
}
@m