/* =====================================================
 * KikoGen - styles.css
 * Estratto da index.html come parte del refactoring v4.0
 * ===================================================== */

/* --- Design Tokens --- */
:root {
  /* Palette - Oceanic Premium */
  --color-primary: #0284c7;
  --color-primary-dark: #075985;
  --color-accent: #38bdf8;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text-main: #0f172a;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-danger: #ef4444;
  --color-success: #10b981;

  /* Spacing & Layout */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --font-family: "Inter", sans-serif;
  --input-bg: #f8fafc;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Layout --- */
header {
  width: 100%;
  height: 280px;
  background: var(--color-text-main);
  position: relative;
  overflow: hidden;
}

.banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.8;
  transition: transform 0.5s ease;
}

header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
}

.main-container {
  width: 100%;
  max-width: 800px;
  margin: -80px auto 40px;
  padding: 0 20px;
  z-index: 10;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 30px;
  align-items: stretch;
}

/* --- Headings --- */
.page-title {
  position: absolute;
  top: -160px;
  left: 20px;
  right: 20px;
  text-align: center;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.page-title h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-title p {
  font-size: 1.1rem;
  opacity: 0.9;
  font-weight: 300;
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title i {
  color: var(--color-primary);
}

/* --- Forms & Inputs --- */
.input-grid {
  display: grid;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-group label i {
  color: var(--color-primary);
  font-size: 0.9em;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--input-bg);
  color: var(--color-text-main);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s ease;
  outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.1);
  background: var(--color-surface);
}

.input-suffix {
  position: absolute;
  right: 16px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.dual-input {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dual-input input {
  text-align: center;
}

.dual-input span {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 8px -1px rgba(2, 132, 199, 0.4);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  border-color: var(--color-text-muted);
}

.btn-accent {
  background: #17a2b8;
  color: white;
}

.btn-accent:hover {
  background: #138496;
}

.btn-print {
  background: #6d28d9;
  color: white;
}

.btn-print:hover {
  background: #5b21b6;
  transform: translateY(-1px);
}

/* --- Preview --- */
.preview-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.preview-card {
  background: url("data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjAiIGhlaWdodD0iMjAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGNpcmNsZSBjeD0iMSIgY3k9IjEiIHI9IjEiIGZpbGw9IiNlMmU4ZjAiLz48L3N2Zz4=")
    var(--color-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
  border: 2px dashed var(--color-border);
  position: relative;
}

.preview-card.printing {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

/* --- Label Styling (Print Target) --- */
.label-content {
  background: white;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: center;
  transition:
    width 0.3s,
    height 0.3s;
}

.label-header {
  background: var(--color-danger);
  color: white;
  height: 25%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  line-height: 1;
  font-size: calc(var(--base-px-size) * 1.6);
}

.label-body {
  flex: 1;
  padding: 4% 8%;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  color: black;
}

.row-mix {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.4em;
  font-size: calc(var(--base-px-size) * 1.25);
}

.box-value {
  border: 2px solid black;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-weight: 700;
}

.text-label {
  font-style: italic;
  font-weight: 600;
}

.divider {
  height: 2px;
  background: black;
  width: 100%;
  margin: 2% 0;
  border-radius: 1px;
}

.row-meta {
  text-align: center;
  font-size: var(--base-px-size);
  display: flex;
  justify-content: center;
  gap: 1em;
}

.row-info {
  font-size: var(--base-px-size);
  display: flex;
  justify-content: space-between;
}

.row-info span:first-child {
  font-style: italic;
}
.row-info span:last-child {
  font-weight: 700;
}

/* --- OCR Modal --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  justify-content: center;
  align-items: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-box {
  background: var(--color-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.camera-viewport {
  width: 100%;
  height: 300px;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  margin: 20px 0;
}

#videoElement,
#captureCanvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: none;
  margin: 10px auto;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --- Footer --- */
footer {
  margin-top: auto;
  text-align: center;
  padding: 40px 20px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  header {
    height: 220px;
  }
  .page-title {
    top: -140px;
  }
  .page-title h1 {
    font-size: 2rem;
  }
  .label-preview {
    min-height: 250px;
  }
}

@media (max-width: 480px) {
  .card {
    padding: 20px;
  }
  .modal-actions button {
    width: 100%;
  }
}

/* --- Stampa @media print ---
 * Nasconde TUTTO tranne la sola etichetta.
 * Usa le dimensioni in mm impostate dall'utente per garantire
 * che la stampa fisica corrisponda alle dimensioni reali dell'etichetta.
 */
@media print {
  body > *:not(#print-area) {
    display: none !important;
  }

  header,
  footer,
  .main-container,
  .page-title {
    display: none !important;
  }

  #print-area {
    display: block !important;
    position: fixed;
    top: 0;
    left: 0;
  }

  #print-area .label-content {
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .label-header {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}