/* quintaedizione.online — Component Styles */

/* ========================================================================
   NAVIGATION
   ======================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  backdrop-filter: blur(8px);
}

.site-nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-nav-brand {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.site-nav-brand:hover { color: var(--color-text); }

.site-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: var(--space-4);
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.site-nav-link:hover { background: var(--color-hover); color: var(--color-text); }
.site-nav-link.active { background: var(--color-bg-secondary); color: var(--color-text); }

.breadcrumb {
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: var(--weight-medium);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.breadcrumb a:hover { background: var(--color-hover); }

.breadcrumb-separator { color: var(--color-text-secondary); }

.breadcrumb-current {
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  max-width: 40vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========================================================================
   THEME TOGGLE
   ======================================================================== */

.theme-switcher {
  display: inline-flex;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
  flex-shrink: 0;
}
.theme-switcher-option {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  width: 32px;
  height: 28px;
  border-radius: calc(var(--radius-md) - 2px);
  color: var(--color-text-secondary);
  background: transparent;
  transition: all var(--transition-fast);
}
.theme-switcher-option:hover {
  color: var(--color-text);
  background: var(--color-hover);
}
.theme-switcher-option:has(input:checked) {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.theme-switcher-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}
.theme-switcher-option svg { width: 16px; height: 16px; }

/* ========================================================================
   HAMBURGER MENU
   ======================================================================== */

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 36px;
  height: 36px;
  padding: 0;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.nav-hamburger:hover { background: var(--color-hover); border-color: var(--color-border-strong); }
.nav-hamburger-line {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-hamburger[aria-expanded="true"] .nav-hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-hamburger[aria-expanded="true"] .nav-hamburger-line:nth-child(2) {
  opacity: 0;
}
.nav-hamburger[aria-expanded="true"] .nav-hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 640px) {
  .site-nav-container { position: relative; }
  .site-nav-links {
    margin-left: 0;
  }
  .nav-hamburger { display: flex; }

  .site-nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) var(--space-4);
    gap: 0;
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.25s ease, opacity 0.2s ease, padding 0.25s ease;
    padding-top: 0;
    padding-bottom: 0;
  }
  .site-nav-links.open {
    max-height: 300px;
    opacity: 1;
    pointer-events: auto;
    padding: var(--space-2) var(--space-4);
  }

  .site-nav-link {
    padding: var(--space-3) var(--space-3);
    font-size: var(--text-base);
    border-radius: var(--radius-md);
    width: 100%;
  }

  .theme-switcher { margin-left: auto; }
}

/* ========================================================================
   BUTTONS
   ======================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  font-family: inherit;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}
.btn:hover:not(:disabled) {
  background: var(--color-hover);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-color: var(--color-text);
  padding: var(--space-3) var(--space-6);
}
.btn-primary:hover:not(:disabled) {
  background: var(--gray-700);
  border-color: var(--gray-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); box-shadow: var(--shadow-sm); }

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  padding: var(--space-3) var(--space-6);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--color-hover);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: none;
  color: var(--color-text);
  border: none;
  padding: var(--space-1) var(--space-2);
}
.btn-ghost:hover:not(:disabled) { background: var(--color-hover); box-shadow: none; }

.btn-large { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-sm, .btn-small { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }

/* ========================================================================
   CARDS
   ======================================================================== */

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ========================================================================
   FORMS
   ======================================================================== */

.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.field, .form-input, .form-select {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: var(--text-base);
  font-family: inherit;
  font-weight: var(--weight-normal);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: var(--leading-normal);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.field::placeholder, .form-input::placeholder { color: var(--gray-400); }
.field:focus, .form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

select.field, .form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23737373' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
  cursor: pointer;
}
html.dark select.field, html.dark .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23E0E0E0' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}

.form-help, .form-hint {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--error);
  margin-top: var(--space-2);
  font-weight: var(--weight-medium);
}

.radio-group {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.radio-button, .radio-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  user-select: none;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: all var(--transition-fast);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
}
.radio-button:hover, .radio-option:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.radio-button:has(input:checked), .radio-option:has(input:checked) {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-color: var(--color-text);
}
.radio-button input[type="radio"], .radio-option input[type="radio"] { cursor: pointer; }

/* ========================================================================
   SEGMENTED CONTROL
   ======================================================================== */

.segmented-control {
  display: inline-flex;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
}
.segmented-control-option {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  padding: var(--space-2) var(--space-5);
  border-radius: calc(var(--radius-md) - 2px);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: transparent;
  transition: all var(--transition-fast);
}
.segmented-control-option:hover {
  color: var(--color-text);
  background: var(--color-hover);
}
.segmented-control-option:has(input:checked) {
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  font-weight: var(--weight-semibold);
}
.segmented-control-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ========================================================================
   STEPPER
   ======================================================================== */

.stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  align-self: start;
  width: fit-content;
}
.stepper-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: var(--color-bg-secondary);
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: background var(--transition-fast);
  user-select: none;
  flex-shrink: 0;
}
.stepper-btn:hover:not(:disabled) { background: var(--color-bg-tertiary); }
.stepper-btn:active:not(:disabled) { background: var(--color-border); }
.stepper-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.stepper-input {
  width: 3.5rem;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  text-align: center;
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  font-family: inherit;
  background: var(--color-bg);
  color: var(--color-text);
  padding: var(--space-2) 0;
  -moz-appearance: textfield;
}
.stepper-input::-webkit-outer-spin-button,
.stepper-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.stepper-input:focus {
  outline: none;
  background: var(--primary-light);
}

.form-container, .form-panel {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.form-section {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.form-section:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.form-section-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.form-field-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.character-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.character-input-group label {
  min-width: 120px;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}
.character-input-group input {
  flex: 1;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  font-size: var(--text-base);
  font-family: inherit;
  background: var(--color-bg);
}

/* ========================================================================
   LOADING & OVERLAYS
   ======================================================================== */

.page-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  display: none;
  background: var(--overlay-medium);
  z-index: 1000;
}
.page-overlay.htmx-request { display: flex; }
.page-overlay-inner { margin: auto; display: flex; align-items: center; justify-content: center; }

.spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--gray-300);
  border-top-color: var(--color-text);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Flash messages */
.flash-message {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  animation: slideDown 0.2s ease-out;
}
.flash-message.flash-error { background: var(--color-flash-error-bg); color: var(--color-flash-error-text); border-color: var(--color-flash-error-border); }
.flash-message.flash-success { background: var(--color-flash-success-bg); color: var(--color-flash-success-text); border-color: var(--color-flash-success-border); }

/* HTMX transitions */
.htmx-swapping { opacity: 0; transition: opacity 0.15s ease-out; }
.htmx-settling { opacity: 1; transition: opacity 0.2s ease-in; }

/* ========================================================================
   GLOSSARY
   ======================================================================== */

.glossary-term {
  text-decoration: underline;
  text-decoration-style: dotted;
  text-decoration-color: var(--gray-400);
  text-underline-offset: 3px;
  cursor: help;
  position: relative;
}
.glossary-term:hover { text-decoration-color: var(--color-text); }

.glossary-tooltip {
  position: absolute;
  z-index: 100;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  max-width: 320px;
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  animation: slideDown 0.15s ease-out;
}
.glossary-tooltip-cat {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}
.glossary-tooltip-def { color: var(--color-text); margin-bottom: var(--space-3); }
.glossary-tooltip-link {
  display: block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-link);
  text-decoration: none;
}
.glossary-tooltip-link:hover { text-decoration: underline; }