/* ════════════════════════════════════════════════════════
   PORTFOLIO — Amos BYLL-CATARIA | dark tech design
════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:           #050d1f;
  --bg2:          #07111f;
  --surface:      #0d1f3c;
  --border:       rgba(59,130,246,0.15);
  --border-hover: rgba(59,130,246,0.4);
  --accent:       #3b82f6;
  --accent2:      #06b6d4;
  --accent-glow:  rgba(59,130,246,0.25);
  --text:         #e2e8f0;
  --text-muted:   #94a3b8;
  --text-dim:     #64748b;
  --radius:       12px;
  --radius-lg:    20px;
  --shadow-glow:  0 0 30px rgba(59,130,246,0.15), 0 8px 30px rgba(0,0,0,0.4);
  --container:    1100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── CUSTOM CURSOR ── */
.cursor-dot {
  position: fixed; width: 6px; height: 6px;
  background: var(--accent); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%,-50%);
}
.cursor-ring {
  position: fixed; width: 30px; height: 30px;
  border: 1.5px solid rgba(59,130,246,.55); border-radius: 50%;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%,-50%);
  transition: width .2s, height .2s, border-color .2s, background .2s;
}
.cursor-ring.hovering {
  width: 46px; height: 46px;
  border-color: var(--accent2);
  background: rgba(6,182,212,.06);
}

/* ── PARTICLES ── */
#particles-canvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
}

/* ── LAYOUT ── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── SECTION HEADER ── */
.section-tag {
  display: inline-block; font-size: .78rem; font-weight: 700;
  color: var(--accent2); text-transform: uppercase; letter-spacing: .16em; margin-bottom: .4rem;
}
.section-header { margin-bottom: 2.5rem; }
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800;
  background: linear-gradient(120deg, #fff 0%, #93c5fd 60%, var(--accent2) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin: 0; line-height: 1.15;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .75rem 1.5rem; border-radius: 8px; background: var(--accent);
  color: #fff; font-weight: 600; font-size: .95rem; border: none; cursor: pointer;
  transition: background .3s, box-shadow .3s, transform .2s; position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg,rgba(255,255,255,.12),transparent);
  opacity: 0; transition: opacity .3s;
}
.btn:hover { background: #2563eb; box-shadow: 0 0 24px var(--accent-glow); transform: translateY(-2px); }
.btn:hover::after { opacity: 1; }
.btn-cv {
  font-size: .82rem; padding: .5rem 1rem; background: transparent;
  border: 1px solid var(--border); color: var(--text-muted);
}
.btn-cv:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-1px); }

/* ════ NAVBAR ════ */
header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; }
.navbar { padding: .7rem 0; transition: background .35s, backdrop-filter .35s, border-color .35s; border-bottom: 1px solid transparent; }
.navbar.scrolled { background: rgba(5,13,31,.9); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-color: var(--border); }
.nav-container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.nav-menu { display: flex; gap: .1rem; }
.nav-link {
  display: block; color: rgba(255,255,255,.65); padding: .4rem .8rem;
  border-radius: 8px; font-size: .88rem; font-weight: 500; transition: color .25s;
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 2px; left: 50%;
  width: 0; height: 2px; background: var(--accent2); border-radius: 2px;
  transform: translateX(-50%); transition: width .3s;
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link.active::after, .nav-link:hover::after { width: 55%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; z-index: 1100; }
.bar { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.nav-toggle.open .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .bar:nth-child(2) { opacity: 0; }
.nav-toggle.open .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ════ HERO ════ */
.hero-section {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; z-index: 1; padding-top: 90px;
}
.hero-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 15% 55%, rgba(59,130,246,.09) 0%, transparent 55%),
              radial-gradient(ellipse at 85% 20%, rgba(6,182,212,.07) 0%, transparent 50%);
  pointer-events: none;
}
.hero-content { display: grid; grid-template-columns: 1.3fr 1fr; gap: 5rem; align-items: center; position: relative; z-index: 1; }
.hero-greeting { font-size: .95rem; color: var(--accent2); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .75rem; }
.hero-name {
  font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900; line-height: 1.1; min-height: 1.15em; margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 25%, #93c5fd 65%, var(--accent2) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.cursor-blink { -webkit-text-fill-color: var(--accent2); animation: blink 1s step-end infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.hero-subtitle { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 1.75rem; min-height: 1.5em; }
.hero-badges { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 2.5rem; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .35rem; padding: .3rem .85rem;
  background: rgba(59,130,246,.09); border: 1px solid rgba(59,130,246,.22);
  border-radius: 999px; font-size: .82rem; color: #93c5fd; font-weight: 500;
  transition: border-color .3s, background .3s;
}
.hero-badge:hover { background: rgba(59,130,246,.18); border-color: rgba(59,130,246,.5); }
.hero-scroll { display: flex; flex-direction: column; gap: .45rem; color: var(--text-dim); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
.scroll-arrow { width: 1px; height: 42px; background: linear-gradient(to bottom, var(--accent), transparent); animation: scrollPulse 2s ease-in-out infinite; margin-left: 3px; }
@keyframes scrollPulse { 0%{opacity:0;transform:scaleY(0);transform-origin:top} 50%{opacity:1;transform:scaleY(1)} 100%{opacity:0;transform-origin:bottom} }
.hero-image { display: flex; justify-content: center; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }
.profile-ring { position: relative; width: 280px; height: 280px; }
.profile-ring::before {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent2), #818cf8, var(--accent));
  animation: spinRing 5s linear infinite;
}
.profile-ring::after {
  content: ''; position: absolute; inset: -10px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent2), transparent);
  animation: spinRing 5s linear infinite; filter: blur(12px); opacity: .4;
}
@keyframes spinRing { to { transform: rotate(360deg); } }
.profile-ring img { position: relative; z-index: 1; width: 100%; height: 100%; border-radius: 50%; object-fit: cover; object-position: center top; border: 4px solid var(--bg); }

/* ════ SECTIONS ════ */
.section { padding: 5rem 0; position: relative; z-index: 1; }

/* ════ À PROPOS ════ */
.about-content { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: center; margin-bottom: 2.5rem; }
.about-text p { font-size: 1.05rem; line-height: 1.85; color: var(--text-muted); }
.about-image img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.about-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; margin-bottom: 2.5rem; }
.about-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem; transition: transform .3s, box-shadow .3s, border-color .3s; }
.about-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-glow); border-color: var(--border-hover); }
.about-card-icon { width: 42px; height: 42px; border-radius: 10px; background: rgba(59,130,246,.14); display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--accent); margin-bottom: .9rem; }
.about-card h3 { font-size: .95rem; color: #93c5fd; margin-bottom: .75rem; padding-bottom: .5rem; border-bottom: 1px solid var(--border); }
.about-card ul { padding-left: 1rem; list-style: disc; }
.about-card li { color: var(--text-muted); font-size: .88rem; margin-bottom: .5rem; line-height: 1.5; }
.about-card em { color: var(--text-dim); font-style: normal; }
.tools-title { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 1.1rem; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 1rem; }
.tools-group { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.2rem 1.4rem; transition: border-color .3s; }
.tools-group:hover { border-color: var(--border-hover); }
.tools-label { display: flex; align-items: center; gap: .4rem; font-weight: 700; font-size: .75rem; color: var(--accent2); text-transform: uppercase; letter-spacing: .08em; margin-bottom: .5rem; }
.tools-group p { font-family: 'JetBrains Mono', monospace; font-size: .83rem; color: var(--text-muted); line-height: 1.75; margin: 0; }

/* ════ COMPÉTENCES ════ */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(300px,1fr)); gap: 1.5rem; }
.skill-category { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; transition: transform .3s, box-shadow .3s, border-color .3s; }
.skill-category:hover { transform: translateY(-5px); box-shadow: var(--shadow-glow); border-color: var(--border-hover); }
.skill-category h3 { font-size: .95rem; color: #93c5fd; margin-bottom: 1.75rem; display: flex; align-items: center; gap: .5rem; padding-bottom: .75rem; border-bottom: 1px solid var(--border); }
.skill-icons { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: center; }
.skill-icon-wrap { display: flex; flex-direction: column; align-items: center; gap: .45rem; font-size: .75rem; color: var(--text-dim); font-weight: 500; transition: transform .3s; cursor: default; }
.skill-icon-wrap:hover { transform: translateY(-5px); }
.skill-icon-wrap:hover span { color: var(--text); }
.skill-devicon { font-size: 48px !important; line-height: 1; }
.custom-badge { width: 54px; height: 54px; border-radius: 13px; display: flex; align-items: center; justify-content: center; transition: box-shadow .3s; }
.custom-badge svg { width: 36px; height: 36px; }
.badge-blue   { background: rgba(59,130,246,.1);  border: 1px solid rgba(59,130,246,.22); }
.badge-teal   { background: rgba(45,212,191,.1);  border: 1px solid rgba(45,212,191,.22); }
.badge-orange { background: rgba(251,146,60,.1);  border: 1px solid rgba(251,146,60,.22); }
.badge-red    { background: rgba(248,113,113,.1); border: 1px solid rgba(248,113,113,.22); }
.badge-purple { background: rgba(192,132,252,.1); border: 1px solid rgba(192,132,252,.22); }
.skill-icon-wrap:hover .badge-blue   { box-shadow: 0 0 18px rgba(59,130,246,.4); }
.skill-icon-wrap:hover .badge-teal   { box-shadow: 0 0 18px rgba(45,212,191,.4); }
.skill-icon-wrap:hover .badge-orange { box-shadow: 0 0 18px rgba(251,146,60,.4); }
.skill-icon-wrap:hover .badge-red    { box-shadow: 0 0 18px rgba(248,113,113,.4); }
.skill-icon-wrap:hover .badge-purple { box-shadow: 0 0 18px rgba(192,132,252,.4); }

/* ════ PROJETS ════ */
.cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: transform .35s, box-shadow .35s, border-color .35s; }
.card:hover { transform: translateY(-7px); box-shadow: 0 24px 50px rgba(0,0,0,.5), 0 0 35px rgba(59,130,246,.12); border-color: var(--border-hover); }
.card-img-wrap { position: relative; overflow: hidden; height: 220px; flex-shrink: 0; }
.card-img-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .55s ease; }
.card:hover .card-img-wrap img { transform: scale(1.06); }
.card-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(5,13,31,.85) 0%, rgba(5,13,31,.1) 55%, transparent 100%); display: flex; align-items: flex-end; padding: 1rem 1.2rem; }
.card-category { font-size: .72rem; font-weight: 700; color: var(--accent2); text-transform: uppercase; letter-spacing: .1em; }
.card-body { padding: 1.5rem; display: flex; flex-direction: column; gap: .75rem; flex: 1; }
.card-body h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin: 0; line-height: 1.35; }
.card-body p { font-size: .88rem; color: var(--text-muted); line-height: 1.65; margin: 0; flex: 1; }
.tags { display: flex; flex-wrap: wrap; gap: .38rem; padding: 0; margin: 0; }
.tag { padding: .18rem .6rem; background: rgba(59,130,246,.1); border: 1px solid rgba(59,130,246,.2); border-radius: 999px; font-size: .75rem; color: #93c5fd; white-space: nowrap; font-weight: 500; }

/* ════ EMBARQUÉ ════ */
.embedded-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.25rem; }
.embedded-category { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; transition: transform .3s, box-shadow .3s, border-color .3s; }
.embedded-category:hover { transform: translateY(-4px); box-shadow: var(--shadow-glow); border-color: var(--border-hover); }
.embedded-icon { width: 40px; height: 40px; border-radius: 10px; background: rgba(59,130,246,.15); display: flex; align-items: center; justify-content: center; font-size: 1rem; color: var(--accent); margin-bottom: .75rem; }
.embedded-category h3 { color: #93c5fd; font-size: .92rem; margin-bottom: .9rem; padding-bottom: .45rem; border-bottom: 1px solid var(--border); }
.embedded-category .tags { flex-direction: column; }
.embedded-category .tag { background: rgba(6,182,212,.08); border-color: rgba(6,182,212,.18); color: #67e8f9; }

/* ════ CONTACT ════ */
.contact-intro { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 2.5rem; line-height: 1.7; }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.4fr; gap: 3rem; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: .9rem; }
.contact-card { display: flex; align-items: center; gap: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; color: var(--text); transition: transform .3s, border-color .3s, box-shadow .3s; }
.contact-card:hover { transform: translateX(6px); border-color: var(--border-hover); box-shadow: 0 0 20px rgba(59,130,246,.12); }
.contact-card-icon { width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.15rem; flex-shrink: 0; }
.contact-card-info { flex: 1; display: flex; flex-direction: column; gap: .12rem; min-width: 0; }
.contact-card-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-dim); font-weight: 700; }
.contact-card-value { font-size: .88rem; color: var(--text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.contact-card-arrow { color: var(--text-dim); font-size: .8rem; transition: transform .3s, color .3s; flex-shrink: 0; }
.contact-card:hover .contact-card-arrow { transform: translateX(4px); color: var(--accent); }
.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .78rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; }
.form-group input, .form-group textarea { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: .85rem 1rem; font-size: .95rem; font-family: inherit; color: var(--text); transition: border-color .3s, box-shadow .3s; width: 100%; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }

/* ════ FOOTER ════ */
footer { padding: 2rem 0; border-top: 1px solid var(--border); position: relative; z-index: 1; }
.footer-content { display: flex; justify-content: space-between; align-items: center; color: var(--text-dim); font-size: .85rem; }

/* ════ RESPONSIVE ════ */
@media (max-width: 900px) {
  .hero-content    { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
  .hero-image      { order: -1; }
  .hero-badges     { justify-content: center; }
  .hero-scroll     { align-items: center; }
  .about-content   { grid-template-columns: 1fr; }
  .about-grid      { grid-template-columns: 1fr; }
  .embedded-grid   { grid-template-columns: repeat(2,1fr); }
  .contact-wrapper { grid-template-columns: 1fr; }
  .cards           { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(5,13,31,.97); backdrop-filter: blur(20px); padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); gap: .25rem; }
  body.nav-open .nav-menu { display: flex; }
  .nav-link { font-size: 1rem; padding: .7rem 1rem; }
  .section { padding: 4rem 0; }
  .profile-ring { width: 210px; height: 210px; }
  body { cursor: auto; }
  .cursor-dot, .cursor-ring { display: none; }
}
@media (max-width: 480px) {
  .section { padding: 3rem 0; }
  .profile-ring { width: 170px; height: 170px; }
  .skills-grid { grid-template-columns: 1fr; }
  .embedded-grid { grid-template-columns: 1fr; }
  .card-img-wrap { height: 180px; }
  .footer-content { flex-direction: column; gap: .4rem; text-align: center; }
}