/* ==========================================================================
   UniTally Website — Artigianale Design System (AppColors + TallyCard)
   "Dati puri, poca decorazione" — Palette Teal Accademica
   Font: Bricolage Grotesque (400, 500, 600, 700, 800)
   ========================================================================== */

@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('./fonts/BricolageGrotesque-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('./fonts/BricolageGrotesque-Medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('./fonts/BricolageGrotesque-SemiBold.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('./fonts/BricolageGrotesque-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('./fonts/BricolageGrotesque-Bold.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  /* Token identici a lib/app/shared/theme/app_colors.dart (Light Mode) */
  --bg: #F8F9FA;
  --surface: #F8F9FA;
  --surface-lowest: #FFFFFF;
  --surface-low: #F1F3F5;
  --surface-container: #E9ECEF;
  --surface-high: #DEE2E6;
  --surface-highest: #CED4DA;
  --primary: #00897B;
  --primary-container: #B2DFDB;
  --on-primary: #FFFFFF;
  --on-primary-container: #121212;
  --on-surface: #1C1C1C;
  --on-surface-variant: #444444;
  --outline: #757575;
  --outline-variant: #C4C4C4;
  --positive-change: #2E7D32;
  --positive-bg: rgba(46, 125, 50, 0.12);
  --negative-change: #E65100;
  --negative-bg: rgba(230, 81, 0, 0.12);
  --lode-gold: #EFBF04;
  --card-border: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(248, 249, 250, 0.88);
  --ring-track: rgba(68, 68, 68, 0.16);
}

html.dark {
  color-scheme: dark;
  /* Token identici a lib/app/shared/theme/app_colors.dart (Dark Mode) */
  --bg: #121212;
  --surface: #121212;
  --surface-lowest: #0A0A0A;
  --surface-low: #171717;
  --surface-container: #1E1E1E;
  --surface-high: #282828;
  --surface-highest: #323232;
  --primary: #80CBC4;
  --primary-container: #00695C;
  --on-primary: #121212;
  --on-primary-container: #FFFFFF;
  --on-surface: #E4E4E4;
  --on-surface-variant: #C4C4C4;
  --outline: #8E8E8E;
  --outline-variant: #444444;
  --positive-change: #81C784;
  --positive-bg: rgba(129, 199, 132, 0.14);
  --negative-change: #FFD54F;
  --negative-bg: rgba(255, 213, 79, 0.14);
  --lode-gold: #EFBF04;
  --card-border: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(18, 18, 18, 0.88);
  --ring-track: rgba(196, 196, 196, 0.16);
}

/* ==========================================================================
   Browser Surfaces & Focus Rings (Craft Floor)
   ========================================================================== */
*, *::before, *::after {
  -webkit-tap-highlight-color: transparent;
}

html {
  font-family: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  scroll-behavior: smooth;
  background-color: var(--bg);
  color: var(--on-surface);
  scrollbar-color: var(--outline-variant) var(--bg);
  scrollbar-width: thin;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg);
  color: var(--on-surface);
  font-size: 1rem;
  line-height: 1.6;
  transition: background-color 0.2s ease, color 0.2s ease;
}

::selection {
  background-color: var(--primary);
  color: var(--on-primary);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* Skip to main content link for keyboard a11y */
.skip-link {
  position: fixed;
  top: -3rem;
  left: 1rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  background-color: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  font-size: 0.875rem;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 1rem;
}

/* ==========================================================================
   Intrinsic Typography Scale (Explicit CSS hierarchy >= 1.25x step)
   ========================================================================== */
h1 {
  font-size: clamp(2.35rem, 5vw + 0.75rem, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.85rem, 3.5vw + 0.5rem, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-wrap: balance;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

p {
  max-width: 68ch;
}

/* Numeri tabulari ovunque per voti, medie, CFU */
.tabular-nums {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* Sticky Navbar pulita */
.tally-nav {
  background-color: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--card-border);
}

/* ==========================================================================
   TallyCard & Superfici (Intrinsic padding >= 20px, 1px border, zero heavy shadow)
   ========================================================================== */
.tally-card {
  background-color: var(--surface-lowest);
  border-radius: 1.5rem;
  border: 1px solid var(--card-border);
  padding: 1.5rem; /* Default intrinsic padding 24px */
}
@media (min-width: 640px) {
  .tally-card {
    padding: 1.75rem; /* 28px on sm+ */
  }
}
html.dark .tally-card {
  background-color: var(--surface-container);
}

/* Inner Sub-Cards (con intrinsic padding >= 16px) */
.tally-subcard {
  background-color: var(--surface-low);
  border-radius: 1.15rem;
  border: 1px solid var(--card-border);
  padding: 1rem 1.15rem; /* Default intrinsic padding 16px 18px */
}

/* Control Row inside Simulator (Intrinsic padding >= 12px) */
.tally-control-row {
  background-color: var(--surface);
  border-radius: 1rem;
  border: 1px solid var(--card-border);
  padding: 0.75rem 1rem; /* 12px 16px */
}

/* Progress bar track without border to avoid card padding heuristics */
.tally-progress-track {
  width: 100%;
  height: 0.5rem;
  border-radius: 9999px;
  background-color: var(--surface-high);
  overflow: hidden;
}

/* Chip in stile EsameCard._chip (Floor 12px) */
.tally-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem; /* 12px floor */
  line-height: 1.2;
  font-weight: 600;
  background-color: var(--surface-container);
  color: var(--on-surface-variant);
  border: 1px solid var(--card-border);
}
html.dark .tally-chip {
  background-color: var(--surface-high);
}

/* Pill Badge di sezione */
.tally-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  background-color: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid var(--card-border);
}

/* Icon Box in stile Primary Container / Teal */
.tally-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.875rem;
  background-color: #00897B;
  color: #FFFFFF;
  flex-shrink: 0;
}
html.dark .tally-icon-box {
  background-color: #00695C;
}

/* Pulsanti con PressableScale */
.tally-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--primary);
  color: var(--on-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 9999px;
}

.tally-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  background-color: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid var(--card-border);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 9999px;
}
/* Pulsanti circolari solo-icona (es. dark mode e burger menu 40x40) */
.tally-btn-secondary.w-10 {
  padding: 0;
}
.tally-btn-primary svg,
.tally-btn-secondary svg,
.tally-stepper-btn svg {
  flex-shrink: 0;
}

/* Nessun effetto hover/shift su pulsanti ed elementi interattivi */
.tally-btn-primary,
.tally-btn-secondary,
.tally-stepper-btn,
button,
a.tally-btn-primary,
a.tally-btn-secondary {
  transform: none !important;
  transition: none !important;
}

.tally-btn-primary:hover,
.tally-btn-secondary:hover,
.tally-stepper-btn:hover,
button:hover,
a.tally-btn-primary:hover,
a.tally-btn-secondary:hover {
  transform: none !important;
  opacity: 1 !important;
  box-shadow: none !important;
}

/* Stepper Button (TallyNumericField) */
.tally-stepper-btn {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 0.75rem;
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  user-select: none;
}
.tally-stepper-btn:disabled {
  background-color: var(--surface-highest);
  color: var(--outline);
  cursor: not-allowed;
  opacity: 0.5;
}

/* ==========================================================================
   Hero Background Texture (home_hero_background.dart + radial_background.dart)
   ========================================================================== */
.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0.75) 55%, rgba(0,0,0,0) 100%);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0.75) 55%, rgba(0,0,0,0) 100%);
}

.hero-teal-silk {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 55% at 50% -5%, rgba(0, 137, 123, 0.20), transparent 70%),
    radial-gradient(circle at 20% 20%, rgba(178, 223, 219, 0.22), transparent 50%),
    radial-gradient(circle at 80% 15%, rgba(0, 137, 123, 0.12), transparent 50%);
}
html.dark .hero-teal-silk {
  background:
    radial-gradient(ellipse 80% 55% at 50% -5%, rgba(128, 203, 196, 0.16), transparent 70%),
    radial-gradient(circle at 20% 20%, rgba(0, 105, 92, 0.28), transparent 50%),
    radial-gradient(circle at 80% 15%, rgba(128, 203, 196, 0.10), transparent 50%);
}

/* ==========================================================================
   Phone Frame Pulito (Con aspect-ratio per prevenire CLS)
   ========================================================================== */
.phone-frame {
  position: relative;
  border-radius: 2.25rem;
  background: #0D0D0D;
  padding: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  overflow: hidden;
}
.phone-screen {
  border-radius: 1.85rem;
  overflow: hidden;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 738 / 1599;
  object-fit: cover;
}

/* Offscreen rendering optimization (modern-web-guidance: defer-rendering-heavy-content) */
.cv-auto {
  content-visibility: auto;
  contain-intrinsic-size: auto 650px;
}

/* ==========================================================================
   Prose Legale (/privacy-terms)
   ========================================================================== */
.legal-prose h2 {
  font-size: clamp(1.5rem, 2.5vw + 0.5rem, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--on-surface);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}
.legal-prose h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--on-surface);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}
.legal-prose p {
  color: var(--on-surface-variant);
  line-height: 1.72;
  margin-bottom: 1rem;
  max-width: 100%;
}
.legal-prose ul {
  list-style-type: disc;
  padding-left: 1.4rem;
  margin-bottom: 1.15rem;
  color: var(--on-surface-variant);
  max-width: 100%;
}
.legal-prose li {
  line-height: 1.7;
  margin-bottom: 0.5rem;
}
.legal-prose strong {
  color: var(--on-surface);
  font-weight: 600;
}
.legal-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875em;
  padding: 0.2rem 0.45rem;
  border-radius: 0.375rem;
  background-color: var(--surface-low);
  color: var(--primary);
  border: 1px solid var(--card-border);
}
.legal-prose a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.legal-prose a:hover {
  opacity: 0.85;
}

/* Scrollbar nascosta per caroselli touch su mobile */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}