/*
 * ClicksFlyer Component Library
 * Reusable UI components with mobile-first responsive design
 * Cross-browser compatible
 */

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  min-height: 44px; /* Touch target */
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md), 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background: var(--white);
  color: var(--gray-700);
  border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* Green/Success Button */
.btn-green {
  background: var(--gradient-money);
  color: var(--white);
  box-shadow: var(--shadow-md), 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 8px 30px rgba(16, 185, 129, 0.4);
}

/* Dark Button */
.btn-dark {
  background: var(--dark);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--gray-800);
  transform: translateY(-2px);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--gray-700);
}

.btn-ghost:hover {
  background: var(--gray-100);
}

/* Button Sizes */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-xs);
  min-height: 36px;
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-base);
  min-height: 52px;
}

.btn-xl {
  padding: var(--spacing-5) var(--spacing-10);
  font-size: var(--font-size-lg);
  min-height: 60px;
}

/* Full width button */
.btn-block {
  width: 100%;
}

/* Button with icon */
.btn-icon {
  padding: var(--spacing-3);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-round);
}

/* ========================================
   CARDS
   ======================================== */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-body {
  padding: var(--spacing-6);
}

.card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--gray-100);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}

.card-image {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Card variants */
.card-bordered {
  border: 1px solid var(--gray-200);
  box-shadow: none;
}

.card-bordered:hover {
  border-color: var(--primary);
}

.card-gradient {
  background: var(--gradient-primary);
  color: var(--white);
}

.card-dark {
  background: var(--dark);
  color: var(--white);
}

/* Feature Card */
.feature-card {
  background: var(--white);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--gray-100);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: transparent;
}

.feature-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background: var(--primary-50);
  font-size: 2rem;
}

.feature-card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-2);
  color: var(--gray-900);
}

.feature-card-text {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--spacing-4) 0;
  background: rgba(255, 255, 255, 0.8);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: var(--spacing-3) 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--gray-900);
  text-decoration: none;
}

.navbar-logo img,
.navbar-logo svg {
  height: 32px;
  width: auto;
}

.navbar-menu {
  display: none;
  gap: var(--spacing-6);
}

.navbar-link {
  color: var(--gray-600);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: var(--spacing-2) 0;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--primary);
}

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

/* Mobile menu button */
.navbar-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-2);
  background: none;
  border: none;
  cursor: pointer;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.navbar-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.navbar-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: calc(var(--z-fixed) - 1);
  padding: 100px var(--spacing-6) var(--spacing-6);
  flex-direction: column;
  gap: var(--spacing-4);
}

.navbar-mobile.active {
  display: flex;
}

.navbar-mobile .navbar-link {
  font-size: var(--font-size-xl);
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid var(--gray-100);
}

/* Desktop navigation */
@media (min-width: 1024px) {
  .navbar-menu {
    display: flex;
  }

  .navbar-toggle {
    display: none;
  }

  .navbar-mobile {
    display: none !important;
  }
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
  margin-bottom: var(--spacing-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-base);
  color: var(--gray-900);
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  min-height: 48px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-input.error {
  border-color: #ef4444;
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

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

.form-check-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.form-check-input:checked {
  background: var(--primary);
  border-color: var(--primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
  background-size: 14px;
  background-position: center;
  background-repeat: no-repeat;
}

.form-check-input[type="radio"] {
  border-radius: var(--radius-round);
}

.form-check-input[type="radio"]:checked {
  background-image: none;
  background: var(--white);
  border-width: 6px;
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

/* Form helper text */
.form-helper {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  margin-top: var(--spacing-1);
}

.form-error {
  font-size: var(--font-size-xs);
  color: #ef4444;
  margin-top: var(--spacing-1);
}

/* ========================================
   BADGES & TAGS
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background: var(--primary-100);
  color: var(--primary-dark);
}

.badge-secondary {
  background: rgba(236, 72, 153, 0.1);
  color: var(--secondary-dark);
}

.badge-green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green-dark);
}

.badge-orange {
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-dark);
}

.badge-gray {
  background: var(--gray-100);
  color: var(--gray-600);
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  background: var(--gray-100);
  color: var(--gray-700);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--gray-200);
}

.tag.active {
  background: var(--primary);
  color: var(--white);
}

/* ========================================
   STATS & METRICS
   ======================================== */
.stat-card {
  text-align: center;
  padding: var(--spacing-6);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1;
  margin-bottom: var(--spacing-2);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  font-weight: var(--font-weight-medium);
}

@media (min-width: 768px) {
  .stat-value {
    font-size: var(--font-size-5xl);
  }
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 var(--spacing-16);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  background: var(--primary-50);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--primary);
  margin-bottom: var(--spacing-6);
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: 1.1;
  margin-bottom: var(--spacing-6);
  color: var(--gray-900);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: var(--spacing-8);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

/* Hero background elements */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: morph 15s ease-in-out infinite;
}

.hero-blob-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  right: -200px;
}

.hero-blob-2 {
  width: 400px;
  height: 400px;
  background: var(--secondary);
  bottom: -100px;
  left: -100px;
  animation-delay: -5s;
}

@media (min-width: 480px) {
  .hero-title {
    font-size: var(--font-size-5xl);
  }

  .hero-actions {
    flex-direction: row;
  }
}

@media (min-width: 768px) {
  .hero {
    padding: 140px 0 var(--spacing-20);
  }

  .hero-title {
    font-size: var(--font-size-6xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--dark);
  color: var(--gray-300);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.footer-brand {
  margin-bottom: var(--spacing-4);
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--white);
  margin-bottom: var(--spacing-4);
}

.footer-brand-text {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 300px;
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-link {
  color: var(--gray-400);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--gray-800);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  align-items: center;
  text-align: center;
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.footer-social {
  display: flex;
  gap: var(--spacing-4);
}

.footer-social a {
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--white);
}

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

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ========================================
   MODALS
   ======================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: var(--z-modal);
  background: var(--white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 90%;
  max-height: 90vh;
  overflow: auto;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.modal-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-400);
  border-radius: var(--radius-round);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--gray-100);
  color: var(--gray-700);
}

.modal-body {
  padding: var(--spacing-6);
}

.modal-footer {
  padding: var(--spacing-6);
  border-top: 1px solid var(--gray-100);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-3);
}

@media (min-width: 768px) {
  .modal {
    max-width: 500px;
  }

  .modal-lg {
    max-width: 700px;
  }
}

/* ========================================
   ACCORDION / FAQ
   ======================================== */
.accordion {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--gray-200);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-5) var(--spacing-6);
  background: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--gray-900);
  transition: background var(--transition-fast);
}

.accordion-header:hover {
  background: var(--gray-50);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.accordion-item.active .accordion-body {
  max-height: 500px;
}

.accordion-content {
  padding: 0 var(--spacing-6) var(--spacing-5);
  color: var(--gray-600);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   LOADING STATES
   ======================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--gray-200) 25%,
    var(--gray-100) 50%,
    var(--gray-200) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--spacing-2);
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: var(--spacing-4);
}

.skeleton-image {
  height: 200px;
  margin-bottom: var(--spacing-4);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: var(--radius-round);
  animation: rotate 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

/* ========================================
   TOOLTIPS
   ======================================== */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: var(--spacing-2) var(--spacing-3);
  background: var(--dark);
  color: var(--white);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  border-radius: var(--radius-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-tooltip);
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* ========================================
   ALERTS / NOTIFICATIONS
   ======================================== */
.alert {
  padding: var(--spacing-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
}

.alert-info {
  background: var(--primary-50);
  color: var(--primary-dark);
  border: 1px solid var(--primary-100);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green-dark);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-warning {
  background: rgba(249, 115, 22, 0.1);
  color: var(--accent-dark);
  border: 1px solid rgba(249, 115, 22, 0.2);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ========================================
   DIVIDERS
   ======================================== */
.divider {
  height: 1px;
  background: var(--gray-200);
  margin: var(--spacing-8) 0;
}

.divider-vertical {
  width: 1px;
  height: 100%;
  background: var(--gray-200);
}

.divider-text {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  color: var(--gray-500);
  font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gray-200);
}

/* ========================================
   SCROLL REVEAL
   ======================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  transform: translateX(-50px);
}

.reveal-left.visible {
  transform: translateX(0);
}

.reveal-right {
  transform: translateX(50px);
}

.reveal-right.visible {
  transform: translateX(0);
}

.reveal-scale {
  transform: scale(0.9);
}

.reveal-scale.visible {
  transform: scale(1);
}