/* === MD3 + GLASSMORPHISM OVERRIDE === */
/* Caricato da index.php dopo il CSS base */

/* ── TOKENS MD3 ── */
:root {
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;
  --md-sys-color-secondary: #625B71;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;
  --md-sys-color-error: #B3261E;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;
  --md-sys-color-surface: #FEF7FF;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;
  
  --md-shape-corner-extra-small: 4px;
  --md-shape-corner-small: 8px;
  --md-shape-corner-medium: 12px;
  --md-shape-corner-large: 16px;
  --md-shape-corner-extra-large: 28px;
  --md-shape-corner-full: 999px;
  
  --md-elevation-1: 0 1px 2px rgba(0,0,0,.3), 0 1px 3px 1px rgba(0,0,0,.15);
  --md-elevation-2: 0 1px 2px rgba(0,0,0,.3), 0 2px 6px 2px rgba(0,0,0,.15);
  --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,.15), 0 1px 3px rgba(0,0,0,.3);
  
  /* Remap to MD3 */
  --bg: var(--md-sys-color-surface);
  --bg-elev: rgba(255,255,255,.92);
  --fg: var(--md-sys-color-on-surface);
  --fg-dim: var(--md-sys-color-on-surface-variant);
  --fg-muted: var(--md-sys-color-outline);
  --accent: var(--md-sys-color-primary);
  --accent-strong: #4F378B;
  --accent-dim: var(--md-sys-color-primary-container);
  --green: #1B7A2D;
  --green-bg: rgba(27,122,45,.12);
  --green-border: rgba(27,122,45,.35);
  --red: var(--md-sys-color-error);
  --red-bg: var(--md-sys-color-error-container);
  --red-border: rgba(179,38,30,.35);
  --amber: #A05E03;
  --amber-bg: rgba(160,94,3,.12);
  --amber-border: rgba(160,94,3,.35);
  --line: var(--md-sys-color-outline-variant);
  --line-strong: var(--md-sys-color-outline);
  --card: rgba(255,255,255,.72);
  --card-hover: rgba(255,255,255,.88);
  --shadow: var(--md-elevation-2);
  --radius: var(--md-shape-corner-extra-large);
  --radius-sm: var(--md-shape-corner-large);
  --focus: 0 0 0 3px rgba(103,80,164,.35);
  --trans: 200ms cubic-bezier(.2,0,0,1);
}

/* ── GLASS BACKGROUND ── */
body {
  background: 
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(103,80,164,.12), transparent 70%),
    radial-gradient(ellipse 60% 80% at 80% 90%, rgba(125,82,96,.10), transparent 70%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(98,91,113,.06), transparent 70%),
    var(--md-sys-color-surface);
  background-attachment: fixed;
}

/* ── GLASS PANELS ── */
.panel {
  background: rgba(255,255,255,.68);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: var(--md-shape-corner-extra-large);
  box-shadow: 
    0 2px 16px rgba(103,80,164,.08),
    0 0 0 1px rgba(103,80,164,.06),
    inset 0 1px 0 rgba(255,255,255,.6);
  transition: all var(--trans);
}
.panel:hover {
  border-color: rgba(103,80,164,.25);
  box-shadow: 
    0 8px 32px rgba(103,80,164,.14),
    0 0 0 1px rgba(103,80,164,.12),
    inset 0 1px 0 rgba(255,255,255,.7);
  transform: translateY(-2px);
}

/* ── MD3 ICON CONTAINERS ── */
.panel-icon {
  width: 56px; height: 56px;
  border-radius: var(--md-shape-corner-full);
  font-size: 1.5rem;
}
.panel-icon.convert {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
.panel-icon.validate {
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

/* ── MD3 HEADER ── */
header h1 {
  background: linear-gradient(135deg, var(--md-sys-color-primary), var(--md-sys-color-tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
header p { color: var(--md-sys-color-on-surface-variant); }

/* ── MD3 FILE DROP ZONE ── */
.file-label {
  background: rgba(103,80,164,.04);
  border: 2px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--md-shape-corner-large);
  transition: border-color var(--trans), background var(--trans), box-shadow var(--trans);
}
.file-label:hover, .file-label.dragover {
  border-color: var(--md-sys-color-primary);
  background: rgba(103,80,164,.08);
  box-shadow: 0 0 0 4px rgba(103,80,164,.08);
}
.file-label.has-file {
  border-color: var(--md-sys-color-primary);
  border-style: solid;
  background: var(--md-sys-color-primary-container);
}

/* ── MD3 BUTTONS ── */
.btn {
  border-radius: var(--md-shape-corner-full);
  font-weight: 600;
  letter-spacing: .025em;
  text-transform: none;
  min-height: 48px;
  padding: .75rem 1.75rem;
}
.btn-primary {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-elevation-1);
}
.btn-primary:hover:not(:disabled) {
  background: #5C449A;
  box-shadow: var(--md-elevation-2);
  transform: translateY(-1px);
}
.btn-secondary {
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-primary);
}

/* ── MD3 RESULT CARDS ── */
.result-item {
  border-radius: var(--md-shape-corner-medium);
  background: rgba(255,255,255,.65);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  border: 1px solid rgba(255,255,255,.45);
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.result-item.success {
  background: rgba(232,222,248,.78);
  backdrop-filter: blur(12px) saturate(150%);
  border-color: rgba(103,80,164,.25);
}
.result-item.error {
  background: rgba(249,222,220,.78);
  backdrop-filter: blur(12px) saturate(150%);
  border-color: rgba(179,38,30,.25);
}
.result-item.warning {
  background: rgba(255,248,225,.78);
  backdrop-filter: blur(12px) saturate(150%);
  border-color: rgba(160,94,3,.25);
}

/* ── MD3 BADGES ── */
.result-badge {
  border-radius: var(--md-shape-corner-full);
  padding: .2rem .65rem;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .04em;
}
.badge-conform {
  background: rgba(27,122,45,.14);
  border: 1px solid rgba(27,122,45,.35);
  color: var(--green);
}
.badge-nonconform {
  background: var(--md-sys-color-error-container);
  border: 1px solid rgba(179,38,30,.35);
  color: var(--md-sys-color-error);
}
.badge-unknown {
  background: rgba(160,94,3,.12);
  border: 1px solid rgba(160,94,3,.35);
  color: var(--amber);
}

/* ── MD3 ICON BUTTONS ── */
.btn-icon {
  border-radius: var(--md-shape-corner-full);
  background: rgba(255,255,255,.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-icon:hover {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--md-sys-color-primary);
}

/* ── MD3 PROGRESS ── */
.progress-bar {
  height: 6px;
  border-radius: var(--md-shape-corner-full);
  background: var(--md-sys-color-surface-variant);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.08);
}
.progress-fill {
  border-radius: var(--md-shape-corner-full);
  background: linear-gradient(90deg, var(--md-sys-color-primary), var(--md-sys-color-tertiary));
  box-shadow: 0 0 8px rgba(103,80,164,.4);
}

/* ── MD3 TOAST ── */
.toast {
  border-radius: var(--md-shape-corner-full);
  background: rgba(28,27,31,.92);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  color: #FEF7FF;
  border: 1px solid rgba(255,255,255,.15);
  box-shadow: var(--md-elevation-3);
}

/* ── FOOTER ── */
.footer {
  background: rgba(255,255,255,.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255,255,255,.5);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .panel { backdrop-filter: blur(16px); }
}