/*
 * Portal Components
 * Buttons, Cards, Forms, Navigation
 * Styled to match CTP Cluj-Napoca branding
 */

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: none;
}

.btn:hover {
  text-decoration: none;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary Button - CTP Red */
.btn-primary {
  background-color: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  color: white;
}

.btn-primary:active {
  transform: scale(0.98);
}

/* Secondary Button */
.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent);
  color: white;
}

.btn-secondary:active {
  transform: scale(0.98);
}

/* Ghost Button */
.btn-ghost {
  background-color: transparent;
  color: var(--color-stone);
  padding: var(--space-2) var(--space-3);
}

.btn-ghost:hover {
  color: var(--color-ink);
  background-color: var(--color-cream);
}

/* Danger Button */
.btn-danger {
  background-color: var(--color-error);
  color: white;
}

.btn-danger:hover {
  background-color: #8a3535;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-block {
  width: 100%;
}

/* Icon Button */
.btn-icon {
  padding: var(--space-3);
  border-radius: var(--radius-md);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* Button with loading state */
.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn-primary.btn-loading::after {
  border-color: white;
  border-right-color: transparent;
}


/* ========================================
   Cards
   ======================================== */

.card {
  background-color: var(--color-cream);
  border: 1px solid var(--color-sand);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-fast);
}

.card-elevated {
  box-shadow: var(--shadow-sm);
}

.card-elevated:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  border-color: var(--color-accent);
}

.card-interactive:active {
  transform: scale(0.99);
}

/* Card with accent border */
.card-accent {
  border-left: 4px solid var(--color-accent);
}

.card-accent-success {
  border-left-color: var(--color-success);
}

.card-accent-warning {
  border-left-color: var(--color-warning);
}

.card-accent-error {
  border-left-color: var(--color-error);
}

/* Card sections */
.card-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-sand);
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-sand);
}

.card-title {
  font-family: var(--font-ui);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
  margin-top: var(--space-1);
}


/* ========================================
   Forms
   ======================================== */

.form-group {
  margin-bottom: var(--space-5);
}

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

.form-label-required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-4);
  font-size: var(--text-base);
  background-color: white;
  border: 1px solid var(--color-sand);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-warm-gray);
}

.form-input:hover {
  border-color: var(--color-stone);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

/* Textarea */
.form-textarea {
  min-height: 120px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-12);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check-input {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--color-sand);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  appearance: none;
  background-color: white;
}

.form-check-input:checked {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.form-check-input[type="radio"] {
  border-radius: 50%;
}

.form-check-input[type="radio"]:checked {
  background-image: none;
  box-shadow: inset 0 0 0 4px white;
}

.form-check-input:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-check-label {
  font-size: var(--text-sm);
  line-height: var(--leading-snug);
  color: var(--color-stone);
}

/* Validation states */
.form-input-error {
  border-color: var(--color-error);
}

.form-input-error:focus {
  box-shadow: 0 0 0 3px var(--color-error-light);
}

.form-input-success {
  border-color: var(--color-success);
}

.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-error);
}

.form-hint {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
}

/* Form row (side-by-side inputs) */
.form-row {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .form-row-2 {
    grid-template-columns: 1fr 1fr;
  }
}


/* ========================================
   Navigation
   ======================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-sand);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--space-4);
  max-width: var(--container-lg);
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: none;
  gap: var(--space-1);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-stone);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-ink);
  background-color: var(--color-cream);
}

.nav-link.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile menu button */
.nav-menu-btn {
  display: flex;
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.nav-menu-btn:hover {
  background-color: var(--color-cream);
}

@media (min-width: 768px) {
  .nav-menu-btn {
    display: none;
  }
}

/* User avatar in nav */
.nav-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-sand);
  background-size: cover;
  background-position: center;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.nav-avatar:hover {
  border-color: var(--color-accent);
}

/* Cart badge */
.nav-cart {
  position: relative;
}

.nav-cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: var(--font-bold);
  line-height: 18px;
  text-align: center;
  color: white;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
  animation: pulse 0.3s ease-out;
}

/* Mobile nav drawer */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  visibility: hidden;
  opacity: 0;
  transition: all var(--transition-base);
}

.nav-drawer.open {
  visibility: visible;
  opacity: 1;
}

.nav-drawer-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(26, 26, 26, 0.5);
}

.nav-drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background-color: var(--color-paper);
  padding: var(--space-4);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.nav-drawer.open .nav-drawer-content {
  transform: translateX(0);
}

.nav-drawer-links {
  margin-top: var(--space-8);
}

.nav-drawer-link {
  display: block;
  padding: var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-stone);
  border-radius: var(--radius-md);
}

.nav-drawer-link:hover,
.nav-drawer-link.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
}


/* ========================================
   Badges & Tags
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  line-height: 1.4;
  border-radius: var(--radius-full);
  background-color: var(--color-cream);
  color: var(--color-stone);
}

.badge-accent {
  background-color: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.badge-success {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.badge-warning {
  background-color: var(--color-warning-light);
  color: var(--color-accent-dark);
}

.badge-error {
  background-color: var(--color-error-light);
  color: var(--color-error);
}


/* ========================================
   Dividers
   ======================================== */

.divider {
  height: 1px;
  background-color: var(--color-sand);
  margin: var(--space-6) 0;
}

.divider-text {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-warm-gray);
  font-size: var(--text-sm);
}

.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-sand);
}


/* ========================================
   Social Login Buttons
   ======================================== */

.social-login-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: white;
  border: 1px solid var(--color-sand);
  transition: all var(--transition-fast);
}

.social-btn:hover {
  border-color: var(--color-stone);
  box-shadow: var(--shadow-sm);
}

.social-btn svg {
  width: 24px;
  height: 24px;
}


/* ========================================
   Alerts & Messages
   ======================================== */

.alert {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert-info {
  background-color: var(--color-cream);
  color: var(--color-stone);
}

.alert-success {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.alert-warning {
  background-color: var(--color-warning-light);
  color: var(--color-accent-dark);
}

.alert-error {
  background-color: var(--color-error-light);
  color: var(--color-error);
}


/* ========================================
   Empty States
   ======================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-4);
  text-align: center;
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--space-6);
  color: var(--color-sand);
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--text-base);
  color: var(--color-warm-gray);
  max-width: 320px;
  margin-bottom: var(--space-6);
}


/* ========================================
   Progress Bar
   ======================================== */

.progress {
  height: 8px;
  background-color: var(--color-sand);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.progress-bar-success {
  background-color: var(--color-success);
}


/* ========================================
   Avatar
   ======================================== */

.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: var(--color-sand);
  background-size: cover;
  background-position: center;
  color: var(--color-warm-gray);
  font-weight: var(--font-semibold);
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: var(--text-sm);
}

.avatar-md {
  width: 48px;
  height: 48px;
  font-size: var(--text-lg);
}

.avatar-lg {
  width: 80px;
  height: 80px;
  font-size: var(--text-2xl);
}

.avatar-xl {
  width: 120px;
  height: 120px;
  font-size: var(--text-4xl);
}


/* ========================================
   Price Display
   ======================================== */

.price {
  font-family: var(--font-ui);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
}

.price-lg {
  font-size: var(--text-2xl);
}

.price-currency {
  font-size: 0.7em;
  font-weight: var(--font-normal);
  margin-left: 2px;
}


/* ========================================
   Quantity Stepper
   ======================================== */

.qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-sand);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.qty-stepper-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-cream);
  transition: background-color var(--transition-fast);
}

.qty-stepper-btn:hover {
  background-color: var(--color-sand);
}

.qty-stepper-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.qty-stepper-value {
  width: 48px;
  text-align: center;
  font-weight: var(--font-medium);
  background-color: white;
}


/* ========================================
   Link Card Banner
   ======================================== */

.link-card-banner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-cream) 100%);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
}

@media (min-width: 768px) {
  .link-card-banner {
    flex-direction: row;
    align-items: center;
  }
}

.link-card-banner-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: white;
  border-radius: var(--radius-md);
}

.link-card-banner-icon svg {
  width: 24px;
  height: 24px;
}

.link-card-banner-content {
  flex: 1;
}

.link-card-banner-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.link-card-banner-text {
  font-size: var(--text-sm);
  color: var(--color-stone);
  line-height: var(--leading-relaxed);
}


/* ========================================
   Info Cards (for instructions)
   ======================================== */

.info-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-cream);
  border-radius: var(--radius-md);
}

.info-card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-sand);
  color: var(--color-stone);
  border-radius: var(--radius-md);
}

.info-card-icon svg {
  width: 20px;
  height: 20px;
}

.info-card-title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.info-card-text {
  font-size: var(--text-sm);
  color: var(--color-stone);
  line-height: var(--leading-relaxed);
}


/* ========================================
   Input Group (with icon)
   ======================================== */

.input-group {
  position: relative;
}

.input-group .form-input {
  padding-left: var(--space-12);
}

.input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-warm-gray);
  pointer-events: none;
}

.input-icon svg {
  width: 20px;
  height: 20px;
}

.form-input-lg {
  height: 56px;
  font-size: var(--text-lg);
}


/* ========================================
   Form Actions
   ======================================== */

.form-actions {
  margin-top: var(--space-6);
}


/* ========================================
   Help Section
   ======================================== */

.help-section {
  text-align: center;
}

.help-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-stone);
  margin-bottom: var(--space-2);
}

.help-text {
  font-size: var(--text-sm);
  color: var(--color-warm-gray);
}


/* ========================================
   Card Sizes
   ======================================== */

.card-lg {
  max-width: 560px;
  margin: 0 auto;
}


/* ========================================
   Page Header
   ======================================== */

.page-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-ink);
}

.page-subtitle {
  font-size: var(--text-base);
  color: var(--color-warm-gray);
  margin-top: var(--space-1);
}

.back-btn {
  flex-shrink: 0;
  margin-top: var(--space-1);
}