/* ============================================
   Article Page Styles
   ============================================ */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: var(--spacing-lg) 0;
}

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

.breadcrumb span {
  opacity: 0.5;
}

/* Article */
.article {
  padding-bottom: var(--spacing-3xl);
}

.article__header {
  margin-bottom: var(--spacing-2xl);
}

.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.article__category {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.article__difficulty {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.article__difficulty--easy {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.article__difficulty--medium {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

.article__difficulty--hard {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
}

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

.article__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.article__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 700px;
}

/* Diagnosis Section */
.diagnosis {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.diagnosis__title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.diagnosis__icon {
  font-size: 1.5rem;
}

.diagnosis__desc {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.diagnosis__screenshot {
  margin-bottom: var(--spacing-lg);
}

.diagnosis__screenshot img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-error);
}

.diagnosis__screenshot figcaption {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  margin-top: var(--spacing-sm);
}

.diagnosis__info h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-sm);
}

.diagnosis__info ul {
  list-style: none;
  padding-left: var(--spacing-md);
}

.diagnosis__info li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-muted);
}

.diagnosis__info li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-error);
}

/* Fix Steps Section */
.fix-steps {
  margin-bottom: var(--spacing-2xl);
}

.fix-steps__title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.fix-steps__icon {
  font-size: 1.5rem;
}

.fix-steps__intro {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
}

/* Individual Step */
.step {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.step--success {
  border-color: var(--color-success);
  background: rgba(16, 185, 129, 0.05);
}

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

.step__number {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.step__number--success {
  background: var(--gradient-success);
}

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

.step__desc {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.step__screenshot {
  position: relative;
}

.step__screenshot img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* Red highlight box overlay */
.step__highlight {
  position: absolute;
  border: 3px solid var(--color-error);
  border-radius: var(--radius-sm);
  pointer-events: none;
  animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
}

/* Troubleshoot Section */
.troubleshoot {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.troubleshoot__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
}

.troubleshoot__options {
  display: grid;
  gap: var(--spacing-lg);
}

@media (min-width: 640px) {
  .troubleshoot__options {
    grid-template-columns: repeat(2, 1fr);
  }
}

.troubleshoot__option {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

.troubleshoot__option h4 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-sm);
}

.troubleshoot__option p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.troubleshoot__option a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Related Fixes */
.related {
  margin-bottom: var(--spacing-2xl);
}

.related__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
}

.related__grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .related__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .related__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   TAILWIND UTILITY CLASSES (Manual)
   ============================================ */

/* Border Radius */
.rounded-lg {
  border-radius: 8px;
}

.rounded-md {
  border-radius: 6px;
}

.rounded-sm {
  border-radius: 4px;
}

/* Border Width */
.border-2 {
  border-width: 2px;
  border-style: solid;
}

.border {
  border-width: 1px;
  border-style: solid;
}

/* Border Colors */
.border-red-500 {
  border-color: #ef4444;
}

.border-red-600 {
  border-color: #dc2626;
}

.border-gray-700 {
  border-color: #374151;
}

/* Shadows */
.shadow-lg {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
}

.shadow-md {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.shadow-sm {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.15);
}

/* Margin Y */
.my-4 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.my-2 {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

/* ============================================
   MONITOR FRAME - macOS Window Style
   ============================================ */
.monitor-frame {
  background: #1a1a24;
  border: 1px solid #2d2d3a;
  border-radius: 12px;
  overflow: hidden;
  margin: 1.5rem 0;
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.1),
    0 10px 40px rgba(0, 0, 0, 0.3);
}

.monitor-frame__top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #2a2a35 0%, #1f1f28 100%);
  border-bottom: 1px solid #2d2d3a;
}

.monitor-frame__dots {
  display: flex;
  gap: 6px;
}

.monitor-frame__dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.monitor-frame__dots .dot--red {
  background: #ff5f57;
}

.monitor-frame__dots .dot--yellow {
  background: #febc2e;
}

.monitor-frame__dots .dot--green {
  background: #28c840;
}

.monitor-frame__title {
  font-size: 12px;
  color: #64748b;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.monitor-frame__screen {
  position: relative;
  background: #0d0d12;
  padding: 4px;
}

.monitor-frame__screen img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

.monitor-frame__caption {
  text-align: center;
  font-size: 13px;
  color: #64748b;
  padding: 10px;
  background: #12121a;
  border-top: 1px solid #2d2d3a;
}

/* ============================================
   TERMINAL BLOCK - Hacker Console Style
   ============================================ */
.terminal-block {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 12px;
  overflow: hidden;
  margin: 1.5rem 0;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
}

.terminal-block__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #161b22 0%, #0d1117 100%);
  border-bottom: 1px solid #30363d;
}

.terminal-block__dots {
  display: flex;
  gap: 6px;
}

.terminal-block__dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-block__dots .dot--red {
  background: #ff5f57;
}

.terminal-block__dots .dot--yellow {
  background: #febc2e;
}

.terminal-block__dots .dot--green {
  background: #28c840;
}

.terminal-block__title {
  font-size: 12px;
  color: #8b949e;
}

.terminal-block__body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  gap: 16px;
}

.terminal-block__code {
  color: #7ee787;
  font-size: 15px;
  word-break: break-all;
  flex: 1;
}

.terminal-block__code::before {
  content: '> ';
  color: #8b949e;
}

.terminal-block__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(110, 118, 129, 0.2);
  border: 1px solid #30363d;
  color: #c9d1d9;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.terminal-block__copy:hover {
  background: rgba(110, 118, 129, 0.4);
  border-color: #8b949e;
}

.terminal-block__copy.copied {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #10b981;
}

.copy-icon {
  font-size: 14px;
}

/* ============================================
   SYMPTOM HEADER - Error Code Hero
   ============================================ */
.symptom-header {
  text-align: center;
  padding: 48px 0;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.symptom-header__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  padding: 4px 16px;
  border-radius: 9999px;
  font-size: 14px;
  color: #3b82f6;
  margin-bottom: 24px;
}

.symptom-header__icon {
  font-size: 1.2rem;
}

.symptom-header__error-code {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
}

.error-code__label {
  font-size: 12px;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.error-code__value {
  font-size: 2rem;
  font-weight: 800;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: #ef4444;
  padding: 8px 24px;
  border: 2px solid #ef4444;
  border-radius: 12px;
  background: rgba(239, 68, 68, 0.05);
}

@media (min-width: 768px) {
  .error-code__value {
    font-size: 2.5rem;
  }
}

.symptom-header__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .symptom-header__title {
    font-size: 2rem;
  }
}

.symptom-header__pain {
  font-size: 1.125rem;
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 32px;
}

.symptom-header__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #1a1a24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: 9999px;
  font-size: 14px;
  color: #94a3b8;
}

.meta-item__icon {
  font-size: 1rem;
}

.meta-item--difficulty {
  font-weight: 600;
}

.meta-item--easy {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.meta-item--medium {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.3);
  color: #f59e0b;
}

.meta-item--hard {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* ============================================
   DIAGNOSIS CAUSES LIST
   ============================================ */
.diagnosis__causes {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.diagnosis__causes h3 {
  font-size: 16px;
  margin-bottom: 16px;
}

.causes-list {
  list-style: none;
  padding: 0;
}

.causes-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 0;
  color: #94a3b8;
}

.cause-icon {
  flex-shrink: 0;
}

/* ============================================
   SUCCESS ACTIONS
   ============================================ */
.success-actions {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px dashed rgba(16, 185, 129, 0.3);
  text-align: center;
}

.success-actions__text {
  font-size: 16px;
  color: #94a3b8;
  margin-bottom: 16px;
}

.success-actions__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn--success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.btn--success:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
}

.btn--outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #94a3b8;
}

.btn--outline:hover {
  border-color: #94a3b8;
  color: #e2e8f0;
}

/* ============================================
   HIGHLIGHT BOX OVERLAY
   ============================================ */
.highlight-box {
  position: absolute;
  border: 3px solid #ef4444;
  border-radius: 4px;
  pointer-events: none;
  animation: highlight-pulse 2s ease-in-out infinite;
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

@keyframes highlight-pulse {
  0%, 100% { 
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
    transform: scale(1);
  }
  50% { 
    box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    transform: scale(1.02);
  }
}