/* ═══════════════════════════════════════════════════════════
   NUS·ID — Portafoli Peter Flakes
   style.css — Sistema de disseny complet
   ═══════════════════════════════════════════════════════════ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Source+Serif+4:ital,wght@0,400;0,600;1,400;1,600&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Variables globals --- */
:root {
  /* Colors */
  --bg-dark: #0a0a0a;
  --bg-dark-subtle: #111111;
  --bg-dark-overlay: rgba(10, 10, 10, 0.92);
  --bg-light: #f5f2ee;
  --bg-light-card: #ffffff;

  --text-light: #f0ece6;
  --text-light-muted: #9a9590;
  --text-dark: #1a1614;
  --text-dark-muted: #6b6560;

  --accent: #c8956c;
  --accent-hover: #daa882;
  --accent-subtle: rgba(200, 149, 108, 0.15);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-light: rgba(0, 0, 0, 0.08);

  /* Tipografia */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Mides */
  --max-width: 900px;
  --max-width-wide: 1100px;
  --header-height: 64px;

  /* Transicions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Reset i base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

::selection {
  background: var(--accent);
  color: var(--bg-dark);
}


/* ═══════════════════════════════════════════════════════════
   CAPÇALERA FIXA
   ═══════════════════════════════════════════════════════════ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  transition: background-color var(--transition-smooth),
              box-shadow var(--transition-smooth);
}

.header.scrolled {
  background-color: var(--bg-dark-overlay);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.header__logo {
  font-family: var(--font-main);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--text-light);
  text-transform: uppercase;
}

.header__logo span {
  color: var(--accent);
}

.header__nav {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.header__nav a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-light-muted);
  text-transform: lowercase;
  transition: color var(--transition-fast);
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition-smooth);
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--text-light);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

/* Menú hamburguesa mòbil */
.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.header__burger span {
  width: 24px;
  height: 2px;
  background: var(--text-light);
  transition: all var(--transition-fast);
}


/* ═══════════════════════════════════════════════════════════
   SECCIÓ 1: HERO
   ═══════════════════════════════════════════════════════════ */

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  min-height: 600px;
  text-align: center;
  padding: 2rem;
  position: relative;
  background: var(--bg-dark);
}

.hero__name {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1;
  margin-bottom: 1.5rem;
  color: var(--text-light);
}

.hero__tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  font-style: italic;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero__tagline strong {
  font-weight: 600;
}

.hero__subtitle {
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-light-muted);
  margin-bottom: 4rem;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-light-muted);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color var(--transition-fast);
  animation: pulse-down 2s ease-in-out infinite;
}

.hero__scroll:hover {
  color: var(--accent);
}

.hero__scroll-arrow {
  font-size: 1.2rem;
}

@keyframes pulse-down {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(6px); opacity: 0.6; }
}


/* ═══════════════════════════════════════════════════════════
   SECCIÓ 2: SERVEIS
   ═══════════════════════════════════════════════════════════ */

.serveis {
  background: var(--bg-light);
  color: var(--text-dark);
  padding: 6rem 2rem;
}

.serveis__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.servei-card {
  background: var(--bg-light-card);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  border: 1px solid var(--border-light);
  transition: transform var(--transition-smooth),
              box-shadow var(--transition-smooth);
}

.servei-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.servei-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-subtle);
  border-radius: 10px;
  font-size: 1.4rem;
}

.servei-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.servei-card__text {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-dark-muted);
}

.servei-card__text p {
  margin-bottom: 0.5rem;
}

.servei-card__footer {
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}


/* ═══════════════════════════════════════════════════════════
   SECCIÓ 3: QUI SOC — El Viatge
   ═══════════════════════════════════════════════════════════ */

.quisoc {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 6rem 2rem;
}

.quisoc__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Full Stack */
.fullstack {
  text-align: center;
  margin-bottom: 4rem;
}

.fullstack__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 2rem;
}

.fullstack__text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-light-muted);
  max-width: 700px;
  margin: 0 auto 1.5rem;
}

.fullstack__formula {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin: 1.5rem 0;
  letter-spacing: 0.02em;
}

.fullstack__note {
  font-size: 0.95rem;
  color: var(--text-light-muted);
}

/* El Viatge */
.viatge {
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border-subtle);
}

.viatge__title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.viatge__intro {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--text-light-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* Fórmula d'origen */
.formula-origen {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  padding: 1.2rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-dark-subtle);
}

.formula-origen__item {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light-muted);
  transition: color var(--transition-fast);
}

.formula-origen__item.active {
  color: var(--accent);
}

.formula-origen__arrow {
  color: var(--text-light-muted);
  opacity: 0.4;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-subtle);
}

.timeline__bloc-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-light-muted);
  opacity: 0.6;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

.timeline__item {
  position: relative;
  margin-bottom: 1.5rem;
  padding-left: 1rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

.timeline__item.visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.6rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-light-muted);
  border: 2px solid var(--bg-dark);
  transition: background var(--transition-fast);
}

.timeline__item:hover::before {
  background: var(--accent);
}

.timeline__year {
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-light);
  margin-right: 0.3rem;
}

.timeline__age {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  margin-right: 0.3rem;
}

.timeline__desc {
  font-size: 0.92rem;
  color: var(--text-light-muted);
  line-height: 1.6;
}

.timeline__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-subtle);
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 0.5rem;
  vertical-align: middle;
}

.timeline__separator {
  margin: 2rem 0;
  border: none;
  border-top: 1px dashed var(--border-subtle);
}

/* La Mentalitat */
.mentalitat {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 650px;
}

.mentalitat__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.mentalitat__text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-light-muted);
  font-style: italic;
}

/* La Intro (2003) */
.intro2003 {
  margin-top: 5rem;
  padding: 6rem 2rem;
  text-align: center;
  position: relative;
  background: var(--bg-dark-subtle);
  border-radius: 16px;
  overflow: hidden;
}

.intro2003__text {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  line-height: 2.2;
  color: var(--text-light-muted);
  max-width: 550px;
  margin: 0 auto;
}

.intro2003__text em {
  font-style: normal;
  display: block;
}

.intro2003__punchline {
  display: block;
  margin-top: 1.5rem;
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--accent);
  font-style: normal;
}

.intro2003__note {
  margin-top: 2.5rem;
  font-family: var(--font-main);
  font-size: 0.75rem;
  color: var(--text-light-muted);
  opacity: 0.5;
  letter-spacing: 0.05em;
}


/* ═══════════════════════════════════════════════════════════
   SECCIÓ 4: PROJECTES
   ═══════════════════════════════════════════════════════════ */

.projectes {
  background: var(--bg-light);
  color: var(--text-dark);
  padding: 6rem 2rem;
}

.projectes__inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.projectes__title {
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-dark);
}

.projecte {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border-light);
}

.projecte:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.projecte:nth-child(even) {
  direction: rtl;
}

.projecte:nth-child(even) > * {
  direction: ltr;
}

.projecte__img-wrap {
  aspect-ratio: 4/3;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-dark-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.projecte__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.projecte__placeholder {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-light-muted);
  opacity: 0.4;
}

.projecte__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.projecte__text {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-dark-muted);
  margin-bottom: 1rem;
}

.projecte__text p {
  margin-bottom: 0.4rem;
}

.projecte__highlight {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
}


/* ═══════════════════════════════════════════════════════════
   SECCIÓ 5: CONTACTE
   ═══════════════════════════════════════════════════════════ */

.contacte {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 8rem 2rem;
  text-align: center;
}

.contacte__title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 2rem;
}

.contacte__email {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  font-weight: 600;
  color: var(--accent);
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}

.contacte__email:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

.footer {
  margin-top: 4rem;
  font-size: 0.75rem;
  color: var(--text-light-muted);
  opacity: 0.4;
  letter-spacing: 0.05em;
}


/* ═══════════════════════════════════════════════════════════
   ANIMACIONS (fade-in amb scroll)
   ═══════════════════════════════════════════════════════════ */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  .header__nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-dark-overlay);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
  }

  .header__nav.open {
    display: flex;
  }

  .header__burger {
    display: flex;
  }

  .serveis__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .projecte {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .projecte:nth-child(even) {
    direction: ltr;
  }

  .formula-origen {
    gap: 0.3rem;
    font-size: 0.8rem;
  }

  .timeline {
    padding-left: 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero__name {
    font-size: 2.5rem;
  }

  .header {
    padding: 0 1.2rem;
  }

  .serveis,
  .quisoc,
  .projectes,
  .contacte {
    padding: 4rem 1.2rem;
  }
}