/* ================================================================
   assets/css/style.css  —  ITC Construction Days Registration Portal
   Matches constructiondays.itc.cnr.it design language
================================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700;800&family=Urbanist:wght@300;400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ── CSS Variables (matching kubio theme) ── */
:root {
  --color-primary:     #002f5f;
  --color-primary-rgb: 0, 47, 95;
  --color-accent:      #f59000;
  --color-accent-dark: #d07a00;
  --color-beige:       rgb(221,190,169);
  --color-text:        rgb(72,69,65);
  --color-text-light:  #888;
  --color-border:      #dde3ec;
  --color-bg:          #f4f6f8;
  --color-white:       #ffffff;
  --color-success:     #2e7d32;
  --color-error:       #c62828;
  --color-warning:     #e65100;
  --font-heading:      'Barlow', Arial, sans-serif;
  --font-body:         'Urbanist', Arial, sans-serif;
  --radius:            8px;
  --radius-lg:         14px;
  --shadow:            0 4px 20px rgba(0,47,95,.10);
  --shadow-sm:         0 2px 8px rgba(0,0,0,.07);
  --transition:        all .25s ease;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }

/* ── Top bar ── */
.topbar {
  background: var(--color-primary);
  color: rgba(255,255,255,.7);
  font-size: 12.5px;
  padding: 6px 0;
  text-align: center;
  letter-spacing: .3px;
}
.topbar a { color: rgba(255,255,255,.9); }

/* ── Header ── */
.site-header {
  background: var(--color-primary);
  box-shadow: 0 2px 12px rgba(0,0,0,.25);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo-wrap { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.logo-wrap img { height: 48px; }
.logo-text { color: #fff; }
.logo-text .conf-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .5px;
  display: block;
  text-transform: uppercase;
  line-height: 1.2;
}
.logo-text .conf-org {
  font-size: 11.5px;
  color: rgba(255,255,255,.6);
  letter-spacing: .5px;
}
.header-spacer { flex: 1; }
.header-subrow {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 12px;
  flex: 1;
  min-width: 0;
}
.header-subrow .conf-org { flex-shrink: 0; }
.header-username {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-align: right;
  overflow-wrap: break-word;
  min-width: 0;
}
.header-badge {
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ── Hero banner ── */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #003f7f 60%, #1a5490 100%);
  color: #fff;
  padding: 60px 24px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
  pointer-events: none;
}
.hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 10px;
}
.hero .subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.8);
  max-width: 560px;
  margin: 0 auto 20px;
}
.hero-meta {
  display: inline-flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 14px;
  color: rgba(255,255,255,.75);
}
.hero-meta span { display: flex; align-items: center; gap: 6px; }

/* ── Alerts / Status banners ── */
.alert {
  max-width: 820px;
  margin: 20px auto;
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 14.5px;
  border-left: 4px solid;
}
.alert-success { background: #e8f5e9; border-color: #388e3c; color: #1b5e20; }
.alert-error   { background: #ffebee; border-color: #c62828; color: #b71c1c; }
.alert-warning { background: #fff8e1; border-color: #f9a825; color: #5d3d00; }
.alert-info    { background: #e3f2fd; border-color: #1565c0; color: #0d47a1; }

/* ── Main layout ── */
.page-body {
  max-width: 820px;
  margin: 40px auto 60px;
  padding: 0 20px;
}

/* ── Card ── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 28px;
}
.card-header {
  background: var(--color-primary);
  color: #fff;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.card-header .step-num {
  background: var(--color-accent);
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.card-header h2 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}
.card-body { padding: 28px; }

/* ── Form elements ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.field-full { grid-column: 1 / -1; }
.form-full { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: .2px;
}
.field label .req { color: var(--color-accent); margin-left: 2px; }

.field input,
.field select,
.field textarea {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  transition: var(--transition);
  outline: none;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,47,95,.1);
}
.field input.error,
.field select.error,
.field textarea.error { border-color: var(--color-error); }
.field .error-msg {
  font-size: 12px;
  color: var(--color-error);
  margin-top: 2px;
}
.field textarea { resize: vertical; min-height: 90px; }

/* ── Placeholder sbiaditi e in corsivo (il testo digitato resta invariato) ── */
.field input::placeholder,
.field textarea::placeholder {
  color: #adb2bb;
  font-style: italic;
}

/* ── Griglia campi Iscrizione all'Albo ── */
.albo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 10px;
  align-items: end;
}
.albo-numero-input { width: 120px; }
.field .hint { font-size: 12px; color: var(--color-text-light); }

/* ── Radio & Checkbox groups ── */
.option-group { display: flex; flex-wrap: wrap; gap: 12px; }
.option-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  cursor: pointer;
  transition: var(--transition);
  flex: 1;
  min-width: 160px;
}
.option-card:hover { border-color: var(--color-primary); background: #f0f4f8; }
.option-card input[type="radio"],
.option-card input[type="checkbox"] { margin-top: 2px; accent-color: var(--color-primary); }
.option-card input:checked ~ * { color: var(--color-primary); }
.option-card.selected { border-color: var(--color-primary); background: #e8f0f8; }
.option-card .opt-icon { font-size: 20px; }
.option-card .opt-label { font-weight: 600; font-size: 14px; }
.option-card .opt-desc  { font-size: 12px; color: var(--color-text-light); }

/* Sessions checkboxes */
.sessions-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.session-item {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
}
.session-item:hover { border-color: var(--color-primary); background: #f0f4f8; }
.session-item input { accent-color: var(--color-primary); flex-shrink: 0; }
.session-item.checked { border-color: var(--color-primary); background: #e8f0f8; }

/* Dietary checkboxes */
.dietary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; }
.dietary-item {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13.5px;
  transition: var(--transition);
}
.dietary-item:hover { border-color: var(--color-accent); }
.dietary-item input { accent-color: var(--color-accent); }

/* ── GDPR section ── */
.gdpr-box {
  background: #f8f9fa;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}
.gdpr-box h3 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-size: 15px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.gdpr-text {
  font-size: 13px;
  color: #555;
  line-height: 1.65;
  max-height: 140px;
  overflow-y: auto;
  border: 1px solid #dde;
  background: #fff;
  padding: 12px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 14px;
}
.checkbox-row input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  accent-color: var(--color-primary);
}
.checkbox-row.required-consent label { font-weight: 600; }

/* ── Submit button ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 14px 36px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  letter-spacing: .3px;
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245,144,0,.4);
  color: #fff;
}
.btn-primary:active { transform: none; }
.btn-primary:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ── Form actions row ── */
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  padding: 20px 28px;
  border-top: 1px solid #edf0f3;
  flex-wrap: wrap;
}

/* ── Closed registration ── */
.reg-closed {
  text-align: center;
  padding: 60px 24px;
}
.reg-closed .icon { font-size: 60px; margin-bottom: 16px; }
.reg-closed h2 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-size: 1.8rem;
  margin-bottom: 10px;
}
.reg-closed p { color: var(--color-text-light); font-size: 1rem; }

/* ── Progress stepper ── */
.stepper {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: 500px;
  margin: 0 auto 32px;
}
.step-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  position: relative;
}
.step-dot::before {
  content: '';
  position: absolute;
  top: 16px;
  left: calc(50% + 18px);
  right: calc(-50% + 18px);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}
.step-dot:last-child::before { display: none; }
.step-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-border);
  color: #999;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}
.step-dot.active .step-circle  { background: var(--color-primary); color: #fff; }
.step-dot.done  .step-circle   { background: var(--color-success); color: #fff; }
.step-dot.active::before       { background: var(--color-border); }
.step-dot.done::before         { background: var(--color-success); }
.step-label { font-size: 11.5px; color: var(--color-text-light); text-align: center; }
.step-dot.active .step-label   { color: var(--color-primary); font-weight: 600; }

/* ── Success page ── */
.success-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 48px 40px;
  text-align: center;
  max-width: 620px;
  margin: 40px auto;
}
.success-card .big-check { font-size: 64px; margin-bottom: 16px; }
.success-card h1 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-size: 2rem;
  margin-bottom: 10px;
}
.success-card p { color: #555; font-size: 1rem; line-height: 1.65; }

/* ── Personal area ── */
.area-header {
  background: var(--color-primary);
  color: #fff;
  padding: 32px 28px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.area-header h2 { font-family: var(--font-heading); font-size: 1.4rem; }
.info-table { width: 100%; border-collapse: collapse; }
.info-table tr:nth-child(even) td { background: #f8f9fa; }
.info-table td {
  padding: 11px 14px;
  font-size: 14.5px;
  border-bottom: 1px solid #edf0f3;
  vertical-align: top;
}
.info-table td:first-child { width: 38%; font-weight: 600; color: var(--color-primary); }

/* ── OTP input ── */
.otp-form { max-width: 400px; margin: 0 auto; text-align: center; }
.otp-input-wrap { display: flex; justify-content: center; gap: 8px; margin: 20px 0; }
.otp-digit {
  width: 52px;
  height: 64px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  color: var(--color-primary);
  transition: var(--transition);
}
.otp-digit:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 3px rgba(0,47,95,.12); }

/* ── Footer ── */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.65);
  padding: 32px 24px;
  text-align: center;
  font-size: 13px;
  margin-top: auto;
}
.site-footer a { color: rgba(255,255,255,.85); }
.site-footer p { margin: 4px 0; }

/* ── Responsive ── */
@media (max-width: 680px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid.cols-3 { grid-template-columns: 1fr; }
  .card-body { padding: 20px; }
  .hero { padding: 36px 16px 32px; }
  .form-actions { justify-content: stretch; }
  .form-actions .btn-primary,
  .form-actions .btn-secondary { flex: 1; justify-content: center; }
  .otp-digit { width: 42px; height: 54px; font-size: 1.5rem; }
  .success-card { padding: 32px 20px; }
  .albo-grid { grid-template-columns: 1fr; }
  .albo-numero-input { width: 100%; }
  .header-inner { flex-wrap: wrap; row-gap: 6px; flex-direction: column; align-items: center; text-align: center; }
  .header-subrow { width: 100%; justify-content: center; }
}