/* ============================================================
   Freebie Stack — Main Stylesheet
   ============================================================ */

/* --- CSS Custom Properties (Theme) --- */
:root {
  --color-primary: #0070d6;
  --color-primary-dark: #005bb5;
  --color-primary-light: #e8f2fc;
  --color-cta: #78b737;
  --color-cta-dark: #62982d;
  --color-error: #ed5f5a;
  --color-error-light: #fdf2f2;
  --color-warning: #f5a623;
  --color-warning-light: #fef9ee;
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1a1a1a;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-featured-accent: #0070d6;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  --transition: 0.18s ease;
  --header-height: 56px;
  --max-width: 760px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* --- Site Header --- */
.site-header {
  background: var(--color-primary);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 112, 214, 0.3);
}

.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.site-logo__icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.site-logo__text {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-btn {
  color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  gap: 5px;
}

.header-btn:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  border-radius: 10px;
  padding: 0 6px;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  background: var(--color-primary);
}

.header-btn .count-badge {
  background: var(--color-cta);
}

/* --- Country Tabs Bar --- */
.tabs-bar {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs-bar::-webkit-scrollbar {
  display: none;
}

.tabs-bar__inner {
  display: flex;
  padding: 0 16px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 0;
}

.tab-btn {
  padding: 12px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: color var(--transition), border-color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.tab-btn:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

.tab-btn .tab-flag {
  font-size: 1rem;
}

/* --- Main Layout --- */
.main-layout {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-content: flex-start;
}

@media (min-width: 900px) {
  .main-layout {
    grid-template-columns: minmax(0, 1fr);
    padding: 24px 16px;
  }
}

/* --- Source Chips Toolbar --- */
.sources-toolbar {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  align-self: flex-start;
}

.sources-toolbar__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 4px;
}

.source-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 20px;
  border: 1.5px solid var(--color-border);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: #fff;
  transition: all var(--transition);
  white-space: nowrap;
}

.source-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.source-chip.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}


.source-chip__logo {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  object-fit: contain;
}


/* --- Feed Container --- */
.feed-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* --- Loading States --- */
.feed-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  gap: 16px;
  color: var(--color-text-muted);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.skeleton-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  gap: 14px;
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.skeleton-thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  background: var(--color-border);
  flex-shrink: 0;
}

.skeleton-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.skeleton-line {
  height: 12px;
  background: var(--color-border);
  border-radius: 4px;
}

.skeleton-line--short { width: 40%; }
.skeleton-line--medium { width: 70%; }
.skeleton-line--long { width: 90%; }

/* --- Offer Card --- */
.offer-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}

.offer-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}


.offer-card.saved {
  border-left: 3px solid var(--color-cta);
}

.offer-card.hidden {
  opacity: 0.5;
}

.offer-card__inner {
  display: flex;
  gap: 0;
}

.offer-card__thumb-wrap {
  flex-shrink: 0;
  width: 110px;
  align-self: stretch;
}

.offer-card__thumb {
  width: 110px;
  height: 100%;
  min-height: 90px;
  object-fit: cover;
  display: block;
}

.offer-card__thumb-placeholder {
  width: 110px;
  height: 100%;
  min-height: 90px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.offer-card__body {
  flex: 1;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.offer-card__meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.offer-card__source-logo {
  width: 14px;
  height: 14px;
  border-radius: 2px;
  object-fit: contain;
}

.offer-card__source-name {
  font-weight: 600;
  color: var(--color-primary);
}


.offer-card__dot {
  color: var(--color-border);
}

.offer-card__time {
  color: var(--color-text-light);
}

.offer-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.offer-card__excerpt {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.offer-card__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.btn-claim {
  background: var(--color-cta);
  color: #fff;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: background var(--transition);
  text-decoration: none;
}

.btn-claim:hover {
  background: var(--color-cta-dark);
  text-decoration: none;
  color: #fff;
}

.btn-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-icon:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-icon.active-save {
  background: #fef9ee;
  border-color: var(--color-cta);
  color: var(--color-cta);
}

.btn-icon.active-hide {
  background: var(--color-error-light);
  border-color: var(--color-error);
  color: var(--color-error);
}

.offer-card__note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-warning-light);
  border-left: 3px solid var(--color-warning);
  padding: 6px 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 4px;
  font-style: italic;
}

/* --- Empty / Error States --- */
.feed-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
}

.feed-empty__icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.feed-empty__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.feed-empty__text {
  font-size: 0.875rem;
  max-width: 320px;
  margin: 0 auto;
}

.feed-error {
  background: var(--color-error-light);
  border: 1px solid var(--color-error);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--color-error);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Alert / Warning Banner --- */
.alert-banner {
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-banner--warning {
  background: var(--color-warning-light);
  border: 1px solid #fde68a;
  color: #78450a;
}

.alert-banner--info {
  background: var(--color-primary-light);
  border: 1px solid #bfdbfe;
  color: #1e3a5f;
}

.alert-banner__icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-banner__dismiss {
  margin-left: auto;
  flex-shrink: 0;
  color: inherit;
  opacity: 0.6;
  font-size: 0.85rem;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.alert-banner__dismiss:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.08);
}

/* --- Saved / Hidden Panel --- */
.list-panel {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.list-panel__header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg);
}

.list-panel__title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.list-panel__close {
  color: var(--color-text-muted);
  font-size: 1.2rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.list-panel__close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.list-panel__body {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 60vh;
  overflow-y: auto;
}

.saved-item, .hidden-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.saved-item__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.saved-item__source {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.saved-item__actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-sm {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: #fff;
  transition: all var(--transition);
}

.btn-sm:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm--danger:hover {
  border-color: var(--color-error);
  color: var(--color-error);
}

.btn-sm--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.btn-sm--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

.note-textarea {
  width: 100%;
  min-height: 64px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--color-text);
  resize: vertical;
  transition: border-color var(--transition);
}

.note-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* --- Modal Overlay --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(12px);
  transition: transform var(--transition);
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal__header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal__title {
  font-size: 1rem;
  font-weight: 700;
}

.modal__close {
  color: var(--color-text-muted);
  font-size: 1.3rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.modal__close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.modal__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal__footer {
  padding: 14px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* --- Form Elements --- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-input {
  padding: 9px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition);
  width: 100%;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

.form-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.form-error {
  font-size: 0.75rem;
  color: var(--color-error);
}

/* --- Buttons --- */
.btn {
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border: 1.5px solid var(--color-primary);
}

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

.btn--cta {
  background: var(--color-cta);
  color: #fff;
  border: 1.5px solid var(--color-cta);
}

.btn--cta:hover {
  background: var(--color-cta-dark);
  border-color: var(--color-cta-dark);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

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

/* --- Footer --- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--color-border);
  padding: 24px 16px 20px;
  margin-top: auto;
}

.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.site-footer__about {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 720px;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer__nav a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer__nav a:hover {
  color: var(--color-primary);
}

.site-footer__copy {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* --- Static Pages --- */
.page-layout {
  flex: 1;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  padding: 32px 16px;
}

.page-hero {
  margin-bottom: 32px;
}

.page-hero__title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-hero__subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.prose {
  color: var(--color-text);
  line-height: 1.7;
}

.prose h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--color-text);
}

.prose h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 20px 0 8px;
}

.prose p {
  margin-bottom: 14px;
  font-size: 0.9375rem;
}

.prose ul, .prose ol {
  list-style: disc;
  margin: 10px 0 14px 20px;
}

.prose li {
  margin-bottom: 6px;
  font-size: 0.9375rem;
}

.prose a {
  color: var(--color-primary);
}

/* --- Contact Form --- */
.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

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

/* --- Load More --- */
.load-more-wrap {
  text-align: center;
  padding: 16px 0;
}


/* --- Notification toast --- */
.toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: #1a1a1a;
  color: #fff;
  padding: 10px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toastIn 0.25s ease, toastOut 0.25s ease 2.5s forwards;
  pointer-events: none;
  white-space: nowrap;
}

.toast--success { background: var(--color-cta); }
.toast--error { background: var(--color-error); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; }
}


/* --- Responsive --- */
@media (max-width: 600px) {
  .site-logo__text {
    font-size: 1.1rem;
  }

  .offer-card__inner {
    align-items: flex-start;
  }

  .offer-card__thumb-wrap {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
  }

  .offer-card__thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
  }

  .offer-card__thumb-placeholder {
    width: 80px;
    height: 80px;
  }

  .offer-card__body {
    padding: 10px 12px;
  }

  .offer-card__title {
    font-size: 0.875rem;
  }

  .main-layout {
    padding: 12px;
    gap: 12px;
  }

  .tab-btn {
    padding: 10px 14px;
    font-size: 0.8rem;
  }

  .header-btn .header-btn__text {
    display: none;
  }

  .contact-form {
    padding: 20px;
  }

  .page-hero__title {
    font-size: 1.4rem;
  }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: 0.875rem; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }