/* ================================================================
   BASE.CSS — Reset, variabili CSS, tipografia, utility globali
   ================================================================ */

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

/* ---- CSS Variables ---- */
:root {
  /* Palette — dark editorial */
  --bg:           #0a0908;
  --surface:      #111009;
  --surface-2:    #161410;
  --border:       rgba(255, 255, 255, 0.07);
  --border-light: rgba(255, 255, 255, 0.12);

  /* Testi */
  --text-primary:  #f0ece5;
  --text-secondary: rgba(240, 236, 229, 0.55);
  --text-tertiary:  rgba(240, 236, 229, 0.30);

  /* Accent — ambra calda */
  --accent:       #e8a870;
  --accent-dim:   rgba(232, 168, 112, 0.12);
  --accent-glow:  rgba(232, 168, 112, 0.25);

  /* Typography */
  --ff-display: 'Syne', system-ui, sans-serif;
  --ff-serif:   'Instrument Serif', Georgia, serif;
  --ff-mono:    'Geist Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;
  --space-2xl: 14rem;

  /* Radius */
  --r-xs:  4px;
  --r-sm:  8px;
  --r-md:  16px;
  --r-lg:  24px;
  --r-xl:  40px;
  --r-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 2px 12px rgba(0,0,0,0.25);
  --shadow-md:  0 8px 32px  rgba(0,0,0,0.35);
  --shadow-lg:  0 24px 60px rgba(0,0,0,0.45);
  --shadow-xl:  0 48px 120px rgba(0,0,0,0.55);

  /* Easing */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-inout:  cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Timing */
  --t-fast:  0.18s;
  --t-base:  0.38s;
  --t-slow:  0.65s;
  --t-xslow: 1.1s;

  /* Layout */
  --max-w:  1280px;
  --pad-x:  clamp(1.5rem, 5vw, 5rem);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html, body {
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--ff-display);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Nasconde il contenuto durante il preloader */
body.is-loading main,
body.is-loading .site-nav,
body.is-loading .hero {
  visibility: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---- Layout Utility ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section {
  padding: clamp(6rem, 12vw, 11rem) 0;
}

/* ---- Section Header ---- */
.section-header {
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}

.eyebrow-num {
  color: var(--accent);
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -2.5px;
  color: var(--text-primary);
}

.section-title em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.accent-dot {
  color: var(--accent);
}

/* ---- Reveal on scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Clip text (per animazioni titolo) ---- */
.clip-text {
  overflow: hidden;
  display: block;
}

.hero-line-inner {
  display: block;
  transform: translateY(105%);
  transition: transform 1s var(--ease-out);
}

.hero-line-inner.is-visible {
  transform: translateY(0);
}

/* ---- Bottoni ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.9rem;
  background: var(--text-primary);
  color: var(--bg);
  font-family: var(--ff-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  border-radius: var(--r-full);
  text-decoration: none;
  transition:
    background var(--t-fast),
    color var(--t-fast),
    transform var(--t-base) var(--ease-out),
    box-shadow var(--t-base);
}

.btn-primary:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px var(--accent-glow);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--t-fast), transform var(--t-base) var(--ease-out);
}

.btn-ghost:hover {
  color: var(--text-primary);
  transform: translateX(6px);
}

/* ---- Scrollbar custom ---- */
::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ---- Selection ---- */
::selection {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ================================================================
   PRELOADER
   ================================================================ */

.preloader {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.preloader-name {
  font-family: var(--ff-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -2px;
  color: var(--text-primary);
}

.preloader-bar {
  width: 200px;
  height: 1px;
  background: var(--border);
  overflow: hidden;
  position: relative;
}

.preloader-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--text-primary));
  transition: width 0.3s ease;
}