/* ============================================
   PORTFOLIO YOANN DACOSTA
   Design: maritime → tech, teal accent, clean
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600&display=swap');

/* ─── TOKENS ─── */
:root, [data-theme="light"] {
  --color-bg:           #F5F4F0;
  --color-surface:      #FAFAF7;
  --color-surface-2:    #FFFFFF;
  --color-border:       #E0DDD8;
  --color-divider:      #EBEBEA;

  --color-text:         #1A1917;
  --color-text-muted:   #6B6A66;
  --color-text-faint:   #B0AFA9;
  --color-text-inverse: #F9F8F5;

  --color-primary:      #0E6B72;
  --color-primary-h:    #0A5159;
  --color-primary-soft: #D6ECED;

  --color-accent:       #1A8C96;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.82rem + 0.27vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.6vw,  1.375rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-hero: clamp(2.75rem,  1rem    + 5.5vw,  6rem);

  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  --shadow-sm: 0 1px 3px rgba(20,18,14,0.06);
  --shadow-md: 0 4px 16px rgba(20,18,14,0.08);
  --shadow-lg: 0 12px 40px rgba(20,18,14,0.12);

  --content: 1120px;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --color-bg:           #141312;
  --color-surface:      #1C1B19;
  --color-surface-2:    #222120;
  --color-border:       #2E2D2B;
  --color-divider:      #252422;
  --color-text:         #CECDCA;
  --color-text-muted:   #787672;
  --color-text-faint:   #4A4946;
  --color-text-inverse: #1A1917;
  --color-primary:      #4FA3AD;
  --color-primary-h:    #3B8C96;
  --color-primary-soft: #1E3235;
  --color-accent:       #5BB5BF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #141312; --color-surface: #1C1B19; --color-surface-2: #222120;
    --color-border: #2E2D2B; --color-divider: #252422;
    --color-text: #CECDCA; --color-text-muted: #787672; --color-text-faint: #4A4946;
    --color-text-inverse: #1A1917;
    --color-primary: #4FA3AD; --color-primary-h: #3B8C96; --color-primary-soft: #1E3235;
    --color-accent: #5BB5BF;
  }
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); font-size: var(--text-base); color: var(--color-text); background: var(--color-bg); line-height: 1.65; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
ul[role="list"] { list-style: none; }

/* ─── LAYOUT ─── */
.container {
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-12));
}

/* ─── TYPOGRAPHY HELPERS ─── */
.label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.label--center { text-align: center; }
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.section-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 54ch;
  margin-bottom: var(--space-12);
}
.text-center { text-align: center; }
.section-sub.text-center { margin-inline: auto; }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--text-sm); font-weight: 600;
  transition: background var(--transition), color var(--transition),
              transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: white;
}
.btn--primary:hover {
  background: var(--color-primary-h);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--sm { padding: 0.45rem 1rem; font-size: var(--text-xs); }

/* ─── NAV ─── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition);
}
.nav--scrolled { box-shadow: var(--shadow-sm); }
.nav__inner {
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-12));
  padding-block: var(--space-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-8);
}
.nav__logo {
  display: flex; align-items: center; gap: var(--space-3);
  font-weight: 600; font-size: var(--text-sm);
  color: var(--color-text);
}
.nav__logo svg { color: var(--color-primary); flex-shrink: 0; }
.nav__links {
  display: flex; gap: var(--space-8);
  font-size: var(--text-sm); font-weight: 500;
}
.nav__links a {
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--color-primary); }
.nav__theme {
  width: 2.25rem; height: 2.25rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
  transition: color var(--transition), border-color var(--transition);
}
.nav__theme:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ─── HERO ─── */
.hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-16);
  padding-block: clamp(var(--space-16), 10vh, var(--space-24));
  padding-inline: clamp(var(--space-6), 5vw, var(--space-12));
  max-width: var(--content);
  margin-inline: auto;
}
.hero__eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  margin-bottom: var(--space-5);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero__title em {
  font-style: italic;
  color: var(--color-primary);
}
.hero__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 48ch;
  margin-bottom: var(--space-8);
}
.hero__actions {
  display: flex; gap: var(--space-4); flex-wrap: wrap;
}

/* Hero visual */
.hero__visual {
  position: relative;
  height: 420px;
  display: flex; align-items: center; justify-content: center;
}
.hero__orb {
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-primary-soft) 0%, transparent 70%);
  opacity: 0.6;
}
.hero__card {
  position: absolute;
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm); font-weight: 600;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: float 3s ease-in-out infinite;
}
.hero__card-icon { font-size: 1.25rem; }
.hero__card--1 { top: 15%; left: 5%; animation-delay: 0s; }
.hero__card--2 { top: 42%; right: 2%; animation-delay: 1s; }
.hero__card--3 { bottom: 18%; left: 10%; animation-delay: 2s; }

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

/* ─── STRIP ─── */
.strip {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
  padding-block: var(--space-8);
}
.strip__inner {
  max-width: var(--content);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-12));
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-12); flex-wrap: wrap;
}
.strip__item {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-1);
}
.strip__item strong {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
}
.strip__item span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}
.strip__sep {
  width: 1px; height: 40px;
  background: var(--color-divider);
}

/* ─── ABOUT ─── */
.about {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-bg);
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}
.about__text h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1.2;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}
.about__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 52ch;
  margin-bottom: var(--space-4);
}
.tag-cloud {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  padding-top: var(--space-4);
}
.tag {
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: var(--text-xs); font-weight: 500;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
}
.tag--accent {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: transparent;
}

/* ─── TOOLS ─── */
.tools {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-surface);
}
.tools__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}
.tool-group {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.tool-group__title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.tool-list { display: flex; flex-direction: column; gap: var(--space-5); }
.tool-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
}
.tool-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0; margin-top: 0.45rem;
}
.tool-item strong {
  display: block;
  font-size: var(--text-sm); font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}
.tool-item span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}
.learning-strip {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
}
.learning-strip .label { margin-bottom: var(--space-3); }
.learning-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ─── PROJECTS ─── */
.projects {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-bg);
}
.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

/* 3 projets sur la dernière rangée : les 2 featured en haut, puis 3 en bas */
.project-card--featured { grid-column: span 1; }

/* Dernière rangée : 3 cartes */
.project-card:nth-child(3),
.project-card:nth-child(4),
.project-card:nth-child(5),
.project-card:nth-child(6) {
  /* handled by grid auto-placement */
}

/* 3 dernières cartes sur 3 colonnes */
.projects__grid:has(.project-card:nth-child(6)) {
  grid-template-columns: repeat(2, 1fr);
}

.project-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-soft);
}
.project-card__header {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3); flex-wrap: wrap;
}
.project-badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  font-size: var(--text-xs); font-weight: 600;
}
.project-badge--web      { background: #EAF2FF; color: #1A56C4; }
.project-badge--ai       { background: #F0EAF8; color: #7C3ABE; }
.project-badge--automation { background: #FEF3EA; color: #C45C12; }
.project-badge--nocode   { background: #EAF8F0; color: #1A7A46; }
.project-badge--multiagent { background: #F0F8EA; color: #3A7A1A; }

[data-theme="dark"] .project-badge--web      { background: #1a2a40; color: #6BA3E8; }
[data-theme="dark"] .project-badge--ai       { background: #2a1a38; color: #B07DE8; }
[data-theme="dark"] .project-badge--automation { background: #3a2010; color: #E8903A; }
[data-theme="dark"] .project-badge--nocode   { background: #102a1a; color: #5ABA7A; }
[data-theme="dark"] .project-badge--multiagent { background: #1a2a10; color: #8ABA5A; }

.project-tool {
  font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 500;
}
.project-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg); line-height: 1.2;
  color: var(--color-text);
}
.project-card__subtitle {
  font-size: var(--text-xs); font-weight: 500;
  color: var(--color-primary);
  margin-top: calc(-1 * var(--space-3));
}
.project-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}
.project-card__details {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  margin-top: auto;
}
.detail strong {
  display: block;
  font-size: var(--text-xs); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-1);
}
.detail p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.project-card__footer {
  display: flex; align-items: center; gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}
.project-card__note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-style: italic;
}

/* Multi-agent pipeline visual */
.pipeline {
  display: flex; align-items: center; gap: var(--space-2);
  flex-wrap: wrap; padding: var(--space-4);
  background: var(--color-surface); border-radius: var(--radius-md);
}
.pipeline__step {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.68rem; font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
  min-width: 72px;
}
.pipeline__step-icon { font-size: 1.1rem; }
.pipeline__arrow {
  color: var(--color-primary); font-size: 1rem; flex-shrink: 0;
}

/* ─── CONTACT ─── */
.contact {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-surface);
}
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.contact__text h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl); line-height: 1.1;
  margin-bottom: var(--space-5);
}
.contact__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 44ch;
}
.contact__links { display: flex; flex-direction: column; gap: var(--space-4); }
.contact__link {
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.contact__link:hover { color: var(--color-primary); }
.contact__link svg { color: var(--color-primary); flex-shrink: 0; }

.alegria-badge {
  background: var(--color-surface-2);
  border: 2px solid var(--color-primary-soft);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
}
.alegria-badge__label {
  display: inline-block;
  font-size: var(--text-xs); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 0.3rem 0.8rem; border-radius: 9999px;
  margin-bottom: var(--space-5);
}
.alegria-badge__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.alegria-badge__prog {
  font-size: var(--text-base); font-weight: 600;
  color: var(--color-text-muted);
  line-height: 1.4; margin-bottom: var(--space-4);
}
.alegria-badge__rncp {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ─── FOOTER ─── */
.footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.footer .container {
  display: flex; flex-direction: column; gap: var(--space-1); align-items: center;
  text-align: center;
}
.footer p { font-size: var(--text-xs); color: var(--color-text-muted); }
.footer a { color: var(--color-primary); }
.footer a:hover { text-decoration: underline; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: var(--space-12);
  }
  .hero__visual { display: none; }
  .about__grid { grid-template-columns: 1fr; gap: var(--space-10); }
  .tools__grid { grid-template-columns: 1fr; }
  .projects__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .strip__sep { display: none; }
}

@media (max-width: 600px) {
  .nav__links { display: none; }
  .project-card__details { grid-template-columns: 1fr; }
  .pipeline { gap: var(--space-1); }
  .pipeline__step { min-width: 58px; font-size: 0.6rem; }
}

/* ─── FOCUS ─── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── SCROLL REVEAL ─── */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.is-visible {
  opacity: 1; transform: translateY(0);
}