/**
 * LOYO Platform - Public CSS
 * 
 * Stylesheet for public-facing pages:
 * - Scan page
 * - Registration
 * - Dashboard
 * - Rewards
 * 
 * All styling via CSS variables for easy customization
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  /* Colors */
  --color-primary: #1F3A5F;   /* LOYO Blue */
  --color-accent: #F5B700;    /* Gold */
  --color-bg: #F7F7F7;
  --color-bg-white: #FFFFFF;
  --color-text: #2B2B2B;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #E0E0E0;
  --color-success: #28A745;
  --color-error: #DC3545;
  --color-warning: #FFC107;
  --color-info: #17A2B8;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-accent);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-sm {
  max-width: 600px;
}

.container-lg {
  max-width: 1400px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.header__logo-link {
  display: inline-block;
}

.header__logo {
  height: 40px;
  width: auto;
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.header__nav-link {
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--font-size-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.header__nav-link:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
}

.header__nav-link--active {
  background-color: var(--color-primary);
  color: white;
  font-weight: 600;
}

.header__nav-link--active:hover {
  background-color: #15304a;
  color: white;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main {
  min-height: calc(100vh - 200px);
  padding-bottom: var(--spacing-xl);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: var(--color-bg-white);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xxl);
}

.footer__text {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-lg);
}

.card__header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card__title {
  margin-bottom: 0;
}

.card__body {
  /* Card body content */
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-align: center;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: #15304a;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text);
}

.btn-accent:hover:not(:disabled) {
  background-color: #e0a500;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-border);
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 58, 95, 0.1);
}

.form-checkbox {
  margin-right: var(--spacing-sm);
}

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

.form-success {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-success {
  color: var(--color-success);
}

.text-error {
  color: var(--color-error);
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden {
  display: none;
}

/* ============================================
   QR VALIDATION STATES
   ============================================ */
.qr-state {
  border: none;
}

.qr-state--error {
  background: var(--color-error);
  color: white;
}

.qr-state--success {
  background: var(--color-success);
  color: white;
}

.qr-state__title {
  margin-bottom: var(--spacing-sm);
}

.qr-state--error .qr-state__title {
  color: white;
}

.qr-state--success .qr-state__title {
  color: white;
}

/* ============================================
   REWARDS SHOP
   ============================================ */
.rewards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.rewards-item {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  background-color: var(--color-bg-white);
  position: relative;
}

.rewards-item .rewards-item__image {
  position: relative;
  z-index: 30;
  opacity: 1 !important;
}

.rewards-item .rewards-item__img {
  position: relative;
  z-index: 31;
  opacity: 1 !important;
}

.rewards-item .rewards-item__image {
  background-color: transparent !important;
  background: none !important;
  z-index: 10;
}

.rewards-item .card__body {
  padding: 0;
  background-color: transparent;
  position: relative;
  z-index: 0;
}

.rewards-item .rewards-item__image {
  background-color: transparent !important;
  background: none !important;
  z-index: 10;
}

.rewards-item .rewards-item__image::before,
.rewards-item .rewards-item__image::after {
  display: none !important;
  content: none !important;
  background: none !important;
}

.rewards-item .rewards-item__image {
  background-color: transparent !important;
}

.rewards-item .card__title {
  padding: var(--spacing-md) var(--spacing-lg) 0 var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.rewards-item .text-muted {
  padding: 0 var(--spacing-lg);
}

.rewards-item .rewards-item__meta {
  padding: var(--spacing-md) var(--spacing-lg);
  margin: 0;
}

.rewards-item .btn {
  margin: var(--spacing-md) var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
}

.rewards-item__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.rewards-item__points {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.rewards-item__status {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.rewards-item--available {
  border-color: var(--color-success);
}

.rewards-item--insufficient {
  opacity: 0.7;
}

.rewards-item--insufficient .rewards-item__image,
.rewards-item--insufficient .rewards-item__img {
  opacity: 1 !important;
  position: relative;
  z-index: 30;
}

.rewards-item__form {
  margin-top: auto;
}

.rewards-item__image {
  text-align: center;
  background-color: transparent !important;
  background: none !important;
  overflow: hidden;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  margin: 0;
  padding: 0;
  line-height: 0;
  position: relative;
  z-index: 10;
  isolation: isolate;
  opacity: 1 !important;
}

.rewards-item__image::before,
.rewards-item__image::after {
  display: none !important;
  content: none !important;
  background: none !important;
}

.rewards-item__img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  object-fit: contain;
  max-height: 200px;
  width: 100%;
  opacity: 1 !important;
  display: block;
  background-color: transparent !important;
  background: none !important;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  margin: 0;
  padding: 0;
  vertical-align: top;
  position: relative;
  z-index: 20;
  isolation: isolate;
  mix-blend-mode: normal;
  filter: none;
}

.rewards-item__img::before,
.rewards-item__img::after {
  display: none !important;
  content: none !important;
  background: none !important;
}

/* Ensure no white overlay on images */
.rewards-item .rewards-item__image * {
  opacity: 1 !important;
  background: none !important;
  background-color: transparent !important;
}

/* ============================================
   SCAN PAGE
   ============================================ */
.scan-area {
  text-align: center;
  padding: var(--spacing-xxl);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.scan-area__icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

/* ============================================
   SCAN RESULT STATES
   ============================================ */
.scan-result {
  text-align: center;
  padding: var(--spacing-xl) 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.scan-result--hidden {
  display: none;
}

.scan-result--visible {
  display: block;
  animation: fadeInUp 0.5s ease-out;
}

/* Checking state */
.scan-result--checking {
  padding: var(--spacing-xxl) 0;
}

.scan-result__checking-text {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-lg);
}

/* Loader */
.scan-result__loader {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.loader {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-bg);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Jackpot result */
.scan-result__jackpot {
  background: linear-gradient(135deg, var(--color-accent) 0%, #e0a500 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
}

.scan-result__icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  display: block;
}

.scan-result__icon--jackpot {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.scan-result__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.scan-result__title--jackpot {
  color: var(--color-text);
}

.scan-result__text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  line-height: 1.5;
}

.scan-result__text--jackpot {
  color: var(--color-text);
  font-weight: 500;
}

.scan-result__subtext {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  margin-bottom: 0;
}

.scan-result__subtext--jackpot {
  color: rgba(43, 43, 43, 0.8);
}

/* No jackpot result */
.scan-result__no-jackpot {
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-lg);
}

.scan-result__title--no-jackpot {
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
}

.scan-result__text--no-jackpot {
  color: var(--color-text);
  font-size: var(--font-size-base);
}

.scan-result__subtext--no-jackpot {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-style: italic;
}

/* Points display (always visible, secondary) */
.scan-result__points {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border: 2px solid var(--color-border);
}

.scan-result__points-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.scan-result__points-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

/* Actions */
.scan-result__actions {
  margin-top: var(--spacing-xl);
}

/* ============================================
   DASHBOARD
   ============================================ */
.points-display {
  text-align: center;
  padding: var(--spacing-xl);
}

.points-display__value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.jackpot-status {
  text-align: center;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
}

.jackpot-status--won {
  background: var(--color-success);
  color: white;
}

.jackpot-status--not-won {
  background: var(--color-bg);
}

.jackpot-status__icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.jackpot-status__text {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.jackpot-status__prize {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-base);
  opacity: 0.9;
}

/* ============================================
   FORMS
   ============================================ */
.form-label--inline {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.form-label--inline span {
  margin-left: var(--spacing-sm);
}

/* ============================================
   LANDING PAGE
   ============================================ */
.landing-hero {
  text-align: center;
  padding: var(--spacing-xxl) 0;
  max-width: 700px;
  margin: 0 auto;
}

.landing-hero__logo {
  margin-bottom: var(--spacing-xl);
}

.landing-hero__logo-img {
  height: 80px;
  width: auto;
}

.landing-hero__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.landing-hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
}

.landing-hero__actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   HOW IT WORKS & FOR RETAILERS PAGES
   ============================================ */
.how-it-works-step {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.how-it-works-step:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.how-it-works-step__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.retailer-benefit {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.retailer-benefit:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.retailer-benefit__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.card--highlight {
  background: linear-gradient(135deg, rgba(31, 58, 95, 0.05) 0%, rgba(245, 183, 0, 0.05) 100%);
  border: 2px solid var(--color-primary);
}

.card--highlight .card__title {
  color: var(--color-primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .landing-hero {
    padding: var(--spacing-xl) 0;
  }
  
  .landing-hero__title {
    font-size: var(--font-size-3xl);
  }
  
  .landing-hero__subtitle {
    font-size: var(--font-size-base);
  }
  
  .landing-hero__actions {
    flex-direction: column;
  }
  
  .landing-hero__actions .btn {
    width: 100%;
  }
  
  .header__nav {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  
  .header__nav-link {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs);
  }
}

/* ============================================
   HISTORY TABLE
   ============================================ */
.history-table {
  overflow-x: auto;
}

.history-table__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.history-table__table thead {
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.history-table__table th {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
}

.history-table__table td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.history-table__table tbody tr:hover {
  background-color: var(--color-bg);
}

.history-table__table tbody tr:last-child td {
  border-bottom: none;
}

@media (max-width: 768px) {
  .history-table__table {
    font-size: var(--font-size-xs);
  }
  
  .history-table__table th,
  .history-table__table td {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}