/* ===================================================================
   PORTFOLIO — Esteban Fernandez
   BUT Réseaux & Télécommunications
   =================================================================== */

:root {
  --color-bg:        #0a0e16;
  --color-bg-alt:    #0d1320;
  --color-surface:   #121927;
  --color-surface-2: #1a2333;
  --color-border:    #232e42;
  --color-text:      #eaeef5;
  --color-text-muted:#8b95ac;
  --color-accent:    #34e0c4;
  --color-accent-dim:rgba(52, 224, 196, 0.12);
  --color-accent-2:  #ff8a4c;

  --font-display: "Space Grotesk", sans-serif;
  --font-body:    "Manrope", sans-serif;
  --font-mono:    "JetBrains Mono", monospace;

  --max-width:  1120px;
  --radius:     14px;
  --radius-sm:  8px;
  --transition: 220ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Layout helpers ---------- */
.section-inner, .nav, .footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Eyebrow ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-dim);
}

/* ---------- Titres de section ---------- */
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-lead {
  color: var(--color-text-muted);
  max-width: 620px;
  font-size: 1.02rem;
  margin-bottom: 48px;
}

/* ---------- Reveal au scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
}
.btn-primary  { background: var(--color-accent); color: #06120f; }
.btn-primary:hover  { background: #4ff0d4; transform: translateY(-2px); }
.btn-secondary { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ===================================================================
   NAVIGATION
   =================================================================== */
.nav-wrap {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(10, 14, 22, 0.72);
  border-bottom: 1px solid var(--color-border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-logo { font-family: var(--font-mono); font-weight: 500; font-size: 1.05rem; }
.nav-logo-bracket { color: var(--color-accent); }
.nav-menu { display: flex; align-items: center; gap: 32px; font-size: 0.92rem; }
.nav-link { color: var(--color-text-muted); transition: color var(--transition); }
.nav-link:hover { color: var(--color-text); }
.nav-link-cta {
  color: var(--color-text); border: 1px solid var(--color-border);
  padding: 9px 18px; border-radius: var(--radius-sm);
}
.nav-link-cta:hover { border-color: var(--color-accent); color: var(--color-accent); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 28px; }
.nav-toggle span { display: block; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }

/* ===================================================================
   HERO
   =================================================================== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 140px 32px 100px;
  overflow: hidden;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(52, 224, 196, 0.14) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 65% 65% at 20% 30%, black 0%, transparent 75%);
  opacity: 0.6;
}
.hero-glow {
  position: absolute; top: -140px; right: -160px; width: 580px; height: 580px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 224, 196, 0.15), transparent 70%);
  filter: blur(12px);
  animation: pulse-glow 8s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.06); }
}

.hero-inner { position: relative; z-index: 1; width: 100%; max-width: var(--max-width); margin: 0 auto; }

.hero-columns {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  line-height: 1.02; letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.hero-title-accent { color: var(--color-accent); }
.hero-subtitle { font-size: clamp(1rem, 1.6vw, 1.15rem); font-weight: 500; margin-bottom: 18px; }
.hero-text { color: var(--color-text-muted); max-width: 520px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-status {
  position: relative; z-index: 1; margin-top: 64px;
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.03em;
  color: var(--color-text-muted);
}
.hero-status .sep { opacity: 0.35; }

/* ---------- LED de statut ---------- */
.status-led {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--color-accent); margin-right: 8px;
  box-shadow: 0 0 0 3px var(--color-accent-dim);
  animation: blink 2.4s ease-in-out infinite;
}
.status-led-active {
  background: var(--color-accent-2);
  box-shadow: 0 0 0 3px rgba(255, 138, 76, 0.18);
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ===================================================================
   CARTE DE PROFIL (remplace le terminal)
   =================================================================== */
.profile-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 32px 64px -32px rgba(0, 0, 0, 0.5);
}

.profile-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--color-accent-dim);
  border: 2px solid var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.3rem;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.profile-name {
  font-family: var(--font-display); font-weight: 600; font-size: 1.1rem;
  margin-bottom: 4px;
}
.profile-role {
  font-family: var(--font-mono); font-size: 0.74rem;
  color: var(--color-text-muted); letter-spacing: 0.02em;
  margin-bottom: 0;
}

.profile-divider {
  height: 1px; background: var(--color-border);
  margin: 22px 0;
}

/* Grille de stats (2 × 2) */
.profile-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-bottom: 22px;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-value {
  font-family: var(--font-display); font-weight: 700;
  font-size: 2rem; color: var(--color-accent); line-height: 1;
}
.stat-label {
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.04em; color: var(--color-text-muted);
  text-transform: uppercase;
}

/* Tags de la carte */
.profile-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.profile-tag {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--color-accent); background: var(--color-accent-dim);
  border-radius: 999px; padding: 5px 12px;
}

/* ===================================================================
   SECTIONS
   =================================================================== */
.section     { padding: 110px 0; }
.section-alt { background: var(--color-bg-alt); }

/* ===================================================================
   FRISE CHRONOLOGIQUE
   =================================================================== */
.timeline {
  position: relative;
  margin-left: 12px;
  padding-left: 56px;
  border-left: 2px solid var(--color-border);
}
.timeline-item { position: relative; padding-bottom: 44px; }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-node {
  position: absolute; left: -75px; top: 0;
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt);
  border: 2px solid var(--color-accent);
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  color: var(--color-accent);
}
.timeline-item-active .timeline-node {
  border-color: var(--color-accent-2); color: var(--color-accent-2);
  animation: node-pulse 2s ease-in-out infinite;
}
@keyframes node-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 138, 76, 0.35); }
  50%       { box-shadow: 0 0 0 8px rgba(255, 138, 76, 0); }
}

.timeline-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px 28px;
}
.timeline-date {
  display: inline-block;
  font-family: var(--font-mono); font-size: 0.74rem;
  color: var(--color-accent); letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.timeline-title { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; }
.timeline-desc  { color: var(--color-text-muted); font-size: 0.95rem; max-width: 560px; }

/* ===================================================================
   PROJETS
   =================================================================== */
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

.project-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}
.project-card:hover { transform: translateY(-4px); border-color: var(--color-accent); }

/* Cartes avec image (BUT1) */
.project-card .project-thumb {
  aspect-ratio: 16 / 10; overflow: hidden;
  background: var(--color-surface-2); border-bottom: 1px solid var(--color-border);
}
.project-card .project-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 500ms ease; }
.project-card:hover .project-thumb img { transform: scale(1.04); }
.project-body { padding: 24px; }

.project-head-inline {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px;
}
.project-ref  { font-family: var(--font-mono); font-size: 0.7rem; color: var(--color-accent); letter-spacing: 0.04em; }
.project-year { font-family: var(--font-mono); font-size: 0.7rem; color: var(--color-text-muted); }

/* Cartes sans image (BUT2 placeholder) */
.project-head {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; padding: 24px 24px 0;
}
.project-icon {
  width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
  border-radius: 10px; background: var(--color-accent-dim); color: var(--color-accent);
}
.project-icon svg { width: 21px; height: 21px; }

.project-title { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.project-desc  { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 18px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.tag {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--color-accent); background: var(--color-accent-dim);
  border-radius: 999px; padding: 5px 12px;
}

.project-links { display: flex; gap: 18px; }
.link-arrow { font-size: 0.88rem; font-weight: 600; color: var(--color-text); transition: color var(--transition); }
.link-arrow:hover { color: var(--color-accent); }

/* Placeholder BUT2 */
.project-card-placeholder { opacity: 0.5; border-style: dashed; }
.project-card-placeholder:hover { opacity: 0.65; transform: none; }
.project-card-placeholder .project-title,
.project-card-placeholder .project-desc,
.project-card-placeholder .tag-list { padding: 0 24px; }
.project-card-placeholder .tag-list { padding-bottom: 24px; }

/* ===================================================================
   ALTERNANCE
   =================================================================== */
.alternance-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 28px; align-items: start; }

.mission-card, .skills-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 32px;
}
.mission-head  { display: flex; align-items: center; margin-bottom: 18px; }
.mission-company { font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-text-muted); }
.mission-role  { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; margin-bottom: 6px; }
.mission-dates { font-family: var(--font-mono); font-size: 0.76rem; color: var(--color-accent); margin-bottom: 18px; }
.mission-intro { color: var(--color-text-muted); font-size: 0.95rem; margin-bottom: 22px; }

.mission-list { display: flex; flex-direction: column; gap: 12px; }
.mission-list li { position: relative; padding-left: 20px; color: var(--color-text-muted); font-size: 0.94rem; }
.mission-list li::before { content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 1px; background: var(--color-accent); }

.skills-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; margin-bottom: 24px; }
.skill-group { margin-bottom: 22px; }
.skill-group:last-child { margin-bottom: 0; }
.skill-group-title {
  font-family: var(--font-mono); font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: 10px;
}

/* ===================================================================
   CONTACT
   =================================================================== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; }
.contact-text { color: var(--color-text-muted); margin-bottom: 32px; max-width: 400px; }
.contact-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }
.contact-list li { display: flex; flex-direction: column; gap: 3px; }
.contact-label { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-muted); }
.contact-list a:hover { color: var(--color-accent); }

.contact-socials { display: flex; gap: 12px; margin-bottom: 32px; }
.social-link {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition);
}
.social-link svg { width: 18px; height: 18px; }
.social-link:hover { border-color: var(--color-accent); color: var(--color-accent); }

.contact-form {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 32px;
  display: flex; flex-direction: column; gap: 18px;
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); }
.form-row input, .form-row textarea {
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 12px 14px;
  color: var(--color-text); font-family: var(--font-body); font-size: 0.95rem;
  resize: vertical; transition: border-color var(--transition);
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--color-accent); outline: none; }

/* ===================================================================
   FOOTER
   =================================================================== */
.footer { border-top: 1px solid var(--color-border); padding: 32px 0 48px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.86rem; color: var(--color-text-muted); }
.footer-top { transition: color var(--transition); }
.footer-top:hover { color: var(--color-accent); }

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 1000px) {
  .hero-columns { grid-template-columns: 1fr; gap: 48px; }
  .profile-card { max-width: 420px; }
}
@media (max-width: 900px) {
  .project-grid      { grid-template-columns: repeat(2, 1fr); }
  .alternance-grid   { grid-template-columns: 1fr; }
  .contact-grid      { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border);
    max-height: 0; overflow: hidden; transition: max-height 300ms ease;
  }
  .nav-menu.is-open { max-height: 440px; }
  .nav-menu li { border-top: 1px solid var(--color-border); }
  .nav-link, .nav-link-cta { display: block; padding: 16px 32px; border-radius: 0; border: none; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .project-grid  { grid-template-columns: 1fr; }
  .section       { padding: 80px 0; }
  .hero          { padding-top: 120px; }
  .timeline      { padding-left: 44px; }
  .timeline-node { left: -56px; width: 30px; height: 30px; font-size: 0.64rem; }
  .profile-stats { grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .stat-value    { font-size: 1.5rem; }
}

/* ===================================================================
   PROJETS BUT2 — grille 2 colonnes + icône inline
   =================================================================== */
.project-grid-2col {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 720px) {
  .project-grid-2col { grid-template-columns: 1fr; }
}

.project-icon-title {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}
.project-icon-title .project-title { margin-bottom: 0; }

.project-icon-sm {
  flex-shrink: 0;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 9px;
  background: var(--color-accent-dim);
  color: var(--color-accent);
  margin-top: 2px;
}
.project-icon-sm svg { width: 19px; height: 19px; }

/* ===================================================================
   AVATAR PHOTO (remplace les initiales quand la photo est présente)
   =================================================================== */
.profile-avatar {
  position: relative;
}

/* La photo se superpose aux initiales et prend tout le cercle */
.profile-avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top; /* cadre légèrement vers le haut — mieux pour les visages */
  border-radius: 50%;
}

/* Les initiales restent en dessous ; elles disparaissent quand la photo charge */
.profile-avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}