/* Estils de la web de diphone: disseny senzill, sense dependències externes */

:root {
  --navy: #152138;          /* blau marí de marca */
  --navy-2: #22325a;
  --accent: #2d5bb4;        /* mateix to que el marí, més lluminós */
  --black: #030406;         /* negre de marca */
  --accent-soft: #e9eef8;
  --ink: #14171f;
  --muted: #5b6478;
  --line: #e4e7ee;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --ok: #127a4a;
  --err: #b42318;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(21, 31, 56, .06), 0 8px 24px rgba(21, 31, 56, .06);
  --max: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

::selection { background: var(--navy); color: #fff; }

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { color: var(--navy); line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 750; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: lowercase;
  color: var(--accent);
  margin-bottom: .8rem;
}
.eyebrow::before { content: "// "; opacity: .55; }
.mono { font-family: var(--mono); }

.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; }

/* Botons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.4rem;
  border-radius: 999px;
  font-weight: 650;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
  text-decoration: none !important;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); }
.btn-ghost { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-ghost:hover { border-color: var(--navy); }
.btn[disabled] { opacity: .6; cursor: wait; transform: none; }

/* Capçalera */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand img { height: 34px; width: auto; }

.nav { display: flex; align-items: center; gap: 1.8rem; position: relative; }
.nav a { color: var(--ink); font-weight: 550; font-size: .97rem; transition: color .2s; }
.nav a:hover { color: var(--accent); text-decoration: none; }
.nav .nav-link.active { color: var(--navy); }
.nav .btn { padding: .55rem 1.1rem; color: #fff; }

/* Indicador que es desplaça sota l'enllaç de la secció visible */
.nav-indicator {
  position: absolute;
  left: 0;
  bottom: -15px;
  height: 3px;
  width: var(--w, 0);
  border-radius: 3px;
  background: var(--accent);
  transform: translateX(var(--x, 0));
  opacity: 0;
  transition: transform .4s cubic-bezier(.2, .8, .2, 1), width .4s cubic-bezier(.2, .8, .2, 1), opacity .3s;
  pointer-events: none;
}
.nav-indicator.show { opacity: 1; }

/* Selector d'idioma */
.lang {
  display: flex;
  align-items: center;
  margin-left: 1.4rem;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: 600 .8rem/1 var(--mono);
}
.lang a, .lang span { padding: .38rem .6rem; border-radius: 999px; color: var(--muted); }
.lang a:hover { color: var(--navy); text-decoration: none; background: var(--bg-soft); }
.lang [aria-current] { background: var(--navy); color: #fff; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-actions .lang { margin-left: 0; }
.header-actions .btn { white-space: nowrap; }
@media (max-width: 480px) { .header-actions .btn-label { display: none; } }
.site-header .nav { margin-left: auto; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
  color: var(--navy);
}

@media (max-width: 760px) {
  .nav-toggle { display: block; order: 2; margin-left: .4rem; }
  .site-header .container > .lang { order: 1; margin-left: auto; }
  .header-actions .btn { padding: .5rem .9rem; font-size: .9rem; }
  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: .5rem 20px 1rem;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .nav .nav-link.active { color: var(--accent); }
  .nav .nav-link.active::before { content: "▸ "; font-family: var(--mono); }
  .nav .btn { margin-top: .8rem; justify-content: center; border-bottom: 0; }
  .nav-indicator { display: none; }
}

/* Seccions */
section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { margin-bottom: 48px; }

/* Hero clar amb fons animat suau */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 100px 0 108px;
  background: linear-gradient(160deg, #eaf0fa 0%, #f6f8fc 55%, #ffffff 100%);
  color: var(--muted);
}
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(21, 33, 56, .11) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 70%, #fff 100%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
  animation: drift 28s ease-in-out infinite alternate;
}
.blob-1 { width: 640px; height: 640px; top: -240px; right: -140px; background: radial-gradient(circle, rgba(45, 91, 180, .16) 0%, rgba(45, 91, 180, 0) 65%); }
.blob-2 { width: 560px; height: 560px; bottom: -300px; left: -180px; background: radial-gradient(circle, rgba(70, 120, 220, .11) 0%, rgba(70, 120, 220, 0) 65%); animation-duration: 34s; animation-delay: -8s; }
.blob-3 { width: 420px; height: 420px; top: 25%; left: 40%; background: radial-gradient(circle, rgba(21, 33, 56, .06) 0%, rgba(21, 33, 56, 0) 65%); animation-duration: 40s; animation-delay: -16s; }

@keyframes drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(-70px, 50px, 0) scale(1.12); }
  100% { transform: translate3d(50px, -40px, 0) scale(.94); }
}

.code-rain {
  position: absolute;
  inset: 0 0 0 auto;
  width: 60%;
  overflow: hidden;
  opacity: .07;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 20%, #000 80%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 20%, #000 80%, transparent);
}
.code-rain pre {
  margin: 0;
  padding-left: 10%;
  font: 13px/2.2 var(--mono);
  color: var(--navy);
  white-space: pre;
  will-change: transform;
  animation: code-up 70s linear infinite;
}
@keyframes code-up {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(0, -50%, 0); }
}

/* Quan el hero no és visible, les animacions s'aturen */
.hero.paused .blob, .hero.paused .code-rain pre, .hero.paused .slogan::after { animation-play-state: paused; }

.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; gap: 48px; } }

.hero h1 { margin-bottom: 1.4rem; }
.hero h1 .eyebrow { display: block; color: var(--accent); margin-bottom: 1rem; text-transform: none; }
.hero h1 .eyebrow::before { content: "> "; }
.slogan { display: block; color: var(--navy); font-size: clamp(2.4rem, 5.4vw, 4rem); line-height: 1.08; }
.slogan em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), #5b8be0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.slogan::after { content: "_"; color: var(--accent); font-weight: 400; margin-left: .05em; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero .lead { color: var(--muted); }
.hero .actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3.2rem; color: var(--muted); font-size: .9rem; font-family: var(--mono); }
.hero-meta strong { display: block; font-family: var(--font); font-size: 1.6rem; color: var(--navy); line-height: 1.15; }

.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--accent-soft); }
.btn-outline-light { border-color: rgba(255, 255, 255, .28); color: #fff; }
.btn-outline-light:hover { border-color: #fff; }

/* Terminal decorativa */
.terminal {
  background: #0b1220;
  border: 1px solid rgba(21, 33, 56, .2);
  border-radius: 14px;
  box-shadow: 0 30px 60px -24px rgba(21, 33, 56, .45), 0 2px 6px rgba(21, 33, 56, .12);
  overflow: hidden;
  max-width: 560px;
  width: 100%;
  justify-self: end;
}
@media (max-width: 960px) { .terminal { justify-self: start; } }
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.terminal-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.terminal-bar i:nth-child(2) { background: #febc2e; }
.terminal-bar i:nth-child(3) { background: #28c840; }
.terminal-bar span { margin-left: 10px; font: 12px var(--mono); color: #6f7a94; }
.terminal-body {
  margin: 0;
  padding: 20px 22px 24px;
  font: 13.5px/1.75 var(--mono);
  color: #dbe3f4;
  white-space: pre;
  overflow-x: auto;
  min-height: 300px;
}
.terminal-body b { color: #6ea0ff; font-weight: 700; }
.t-out { color: #93a0bd; }
.t-ok { color: #4ade80; }
.terminal.js-typing .t-line { visibility: hidden; }
.terminal.js-typing .t-line.on { visibility: visible; }
.t-caret { display: inline-block; width: .6em; height: 1.1em; vertical-align: -.2em; background: #dbe3f4; animation: blink 1.1s steps(1) infinite; }

/* Targetes de serveis */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 960px) { .grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 20px;
}
.card p { color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.2rem 0 0; padding: 0; list-style: none; }
.tags li {
  font-family: var(--mono);
  font-size: .78rem;
  font-weight: 600;
  padding: .3rem .75rem;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--navy);
}

/* Passos de treball */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: 28px 28px 24px; border-left: 3px solid var(--accent); background: #fff; border-radius: 0 var(--radius) var(--radius) 0; }
.step::before {
  counter-increment: step;
  content: "0" counter(step) ".";
  display: block;
  font-family: var(--mono);
  font-size: .85rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .1em;
  margin-bottom: .5rem;
}
.step p { color: var(--muted); margin: 0; }

.quote {
  margin: 48px 0 0;
  padding: 28px 32px;
  border-radius: var(--radius);
  background: linear-gradient(110deg, var(--navy) 0%, var(--navy) 55%, var(--black) 100%);
  color: #dfe5f3;
  font-size: 1.15rem;
}
.quote strong { color: #fff; }

/* Sobre mi */
.about { display: grid; grid-template-columns: 380px 1fr; gap: 64px; align-items: center; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; gap: 36px; } }
.about-photo { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 4 / 5; max-width: 380px; }
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about p { color: var(--muted); }

/* Contacte */
.contact { display: grid; grid-template-columns: 1fr 1.3fr; gap: 64px; align-items: start; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; gap: 40px; } }

.contact-links { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 12px; }
.contact-links a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font-weight: 600;
  transition: border-color .15s;
}
.contact-links a:hover { border-color: var(--accent); text-decoration: none; }
.contact-links svg { flex: none; color: var(--accent); }
.contact-links small { display: block; font-weight: 500; color: var(--muted); }

.form { display: grid; gap: 18px; }
.field label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: 6px; color: var(--navy); }
.field input, .field textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: .8rem 1rem;
  border: 1px solid #cfd4df;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.field textarea { min-height: 160px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }

.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: var(--muted); }
.check input { margin-top: 5px; width: 17px; height: 17px; accent-color: var(--navy); }

/* Verificació antispam (ALTCHA) */
.altcha {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem 1rem;
  padding: 12px 16px;
  border: 1px solid #cfd4df;
  border-radius: 10px;
  background: var(--bg-soft);
}
.altcha-box { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--navy); cursor: pointer; }
.altcha-box input { width: 20px; height: 20px; margin: 0; accent-color: var(--ok); cursor: pointer; }
.altcha-status { font-size: .78rem; color: var(--muted); }
.altcha[data-state="working"] .altcha-box input { opacity: .4; }
.altcha[data-state="working"] .altcha-status::after { content: "_"; animation: blink 1.1s steps(1) infinite; }
.altcha[data-state="ok"] { border-color: #9fd8bb; background: #eef9f3; }
.altcha[data-state="ok"] .altcha-status { color: var(--ok); }
.altcha[data-state="error"] { border-color: #f1b0a8; }
.altcha[data-state="error"] .altcha-status { color: var(--err); }

.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

.form-legal { font-size: .8rem; color: var(--muted); margin: 0; }

.alert { padding: 14px 18px; border-radius: 10px; font-weight: 550; display: none; }
.alert.show { display: block; }
.alert-ok { background: #e7f6ee; color: var(--ok); }
.alert-err { background: #fdecea; color: var(--err); }

/* Peu */
.site-footer { background: var(--black); color: #aab3c8; padding: 56px 0 36px; font-size: .93rem; }
.site-footer a { color: #dfe5f3; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 32px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-top img { height: 30px; width: auto; }
.social { display: flex; gap: 10px; }
.social a {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  transition: background .15s;
}
.social a:hover { background: var(--accent); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 24px; }
.footer-bottom nav { display: flex; gap: 20px; }
.footer-note { display: block; margin-top: 6px; font-size: .78rem; color: #66708a; }

/* Pàgines legals */
.legal { padding: 72px 0 96px; }
.legal .container { max-width: 820px; }
.legal h2 { font-size: 1.35rem; margin-top: 2.2rem; }
.legal p, .legal li { color: var(--muted); }
.legal table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: .95rem; }
.legal th, .legal td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal th { color: var(--navy); width: 32%; }

@media (max-width: 560px) {
  section { padding: 72px 0; }
  .hero { padding: 64px 0 72px; }
  .terminal-body { font-size: 11.5px; padding: 16px 12px; min-height: 0; }
  .code-rain { width: 100%; opacity: .05; }
  .hero-meta { gap: 1.2rem 2rem; margin-top: 2.4rem; }
  .card { padding: 28px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  .blob, .code-rain pre, .slogan::after, .t-caret { animation: none !important; }
}