/* ==========================================================================
   DramaGo Task Page Styles
   Theme: Dark Streaming / Mobile First
   ========================================================================== */

:root {
  --color-bg: #070b14;
  --color-surface: #101725;
  --color-surface-soft: #161f30;
  --color-surface-elevated: #1c2638;

  --color-text: #ffffff;
  --color-text-muted: #aab3c2;
  --color-text-soft: #7f8999;

  --color-primary: #ef2637;
  --color-primary-hover: #ff4050;

  --color-gold: #f5bd42;
  --color-gold-soft: rgba(245, 189, 66, 0.14);

  --color-success: #32c878;
  --color-success-soft: rgba(50, 200, 120, 0.14);

  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-family-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-btn: 0 4px 16px rgba(239, 38, 55, 0.35);

  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 16px;
}

.narrow-container {
  max-width: 760px;
}

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

.hidden {
  display: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.2;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn-large {
  padding: 16px 28px;
  font-size: 1.05rem;
  min-height: 52px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-surface-elevated);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  background-color: var(--color-surface-soft);
  border-color: rgba(255, 255, 255, 0.3);
}

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

.btn-ghost:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: 60px;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 16px;
}

.brand-logo {
  display: block;
  width: auto;
  height: 32px;
}

.reward-tag-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background-color: var(--color-gold-soft);
  border: 1px solid rgba(245, 189, 66, 0.3);
  color: var(--color-gold);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
}

/* Hero Section */
.hero-section {
  padding: 32px 0 24px;
  background: radial-gradient(circle at 50% 0%, rgba(239, 38, 55, 0.12) 0%, rgba(7, 11, 20, 0) 70%);
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: 0.825rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.hero-title {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
  max-width: 720px;
}

.hero-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin-bottom: 20px;
}

.hero-reward-card {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background-color: var(--color-gold-soft);
  border: 1px dashed rgba(245, 189, 66, 0.4);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.reward-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.reward-amount {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-gold);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 380px;
}

.hero-subtext {
  font-size: 0.78rem;
  color: var(--color-text-soft);
  margin-top: 10px;
}

/* Video Section */
.video-section {
  padding: 24px 0 40px;
}

.player-container {
  max-width: 920px;
}

.section-header {
  margin-bottom: 18px;
}

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.section-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Task Player Card */
.task-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-card);
}

.task-card-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--color-text-soft);

}

.meta-value {
  font-size: 0.9rem;
  font-weight: 600;

}

.task-code-text {
  font-family: var(--font-family-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.5px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}

.status-idle {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text-muted);
}

.status-playing {
  background-color: rgba(239, 38, 55, 0.15);
  color: var(--color-primary-hover);
}

.status-paused {
  background-color: var(--color-gold-soft);
  color: var(--color-gold);
}

.status-completed {
  background-color: var(--color-success-soft);
  color: var(--color-success);
}

.reward-badge-inline {
  font-weight: 800;
  color: var(--color-gold);
  font-size: 0.95rem;
}

/* Video Wrapper */
.video-player-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #000000;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-player-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Loader & Overlays */
.video-loader {
  position: absolute;
  inset: 0;
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 10;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border-strong);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.video-error-overlay {
  position: absolute;
  inset: 0;
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  text-align: center;
  z-index: 12;
}

.video-error-overlay i {
  font-size: 2.5rem;
  color: var(--color-primary);
}

/* Toast Inside Player */
.player-toast {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background-color: rgba(16, 23, 37, 0.92);
  border: 1px solid var(--color-border-strong);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  color: #ffffff;
  z-index: 15;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  pointer-events: none;
  max-width: 90%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-toast i {
  color: var(--color-gold);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* Custom Controls */
.custom-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 10px 14px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 70%, transparent 100%);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 8;
  transition: opacity var(--transition-fast);
}

.control-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 1.35rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  transition: color var(--transition-fast);
}

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

.time-display {
  font-size: 0.78rem;
  font-family: var(--font-family-mono);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.time-separator {
  opacity: 0.5;
}

/* Restricted Progress Bar */
.progress-bar-wrapper {
  flex: 1;
  height: 18px;
  display: flex;
  align-items: center;
  cursor: pointer;
  position: relative;
  touch-action: none;
}

.progress-track {
  width: 100%;
  height: 5px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
}

.progress-watched {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background-color: rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-full);
}

.progress-current {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 0.1s linear;
}

.percentage-badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-gold);
  min-width: 32px;
  text-align: right;
  font-family: var(--font-family-mono);
}

/* Volume Control */
.volume-container {
  display: flex;
  align-items: center;
  gap: 6px;
}

.volume-slider {
  width: 50px;
  height: 4px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* Milestone Stepper */
.milestones-container {
  margin-top: 20px;
  padding: 8px 12px 0;
  position: relative;
}

.milestones-track {
  position: absolute;
  top: 18px;
  left: 40px;
  right: 40px;
  height: 3px;
  background-color: var(--color-surface-elevated);
  z-index: 1;
}

.milestone-line-progress {
  height: 100%;
  width: 0%;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.milestones-steps {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
}

.step-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.step-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-surface-elevated);
  border: 2px solid var(--color-surface);
  color: var(--color-text-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  transition: all var(--transition-normal);
}

.step-label {
  font-size: 0.75rem;
  color: var(--color-text-soft);
  font-weight: 600;
}

/* Milestone States */
.step-node.active .step-icon {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.step-node.completed .step-icon {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.step-node.completed .step-label {
  color: var(--color-text);
}

.step-node#stepEnd.completed .step-icon {
  background-color: var(--color-success);
  border-color: var(--color-success);
}

/* Certificate Section & Card */
.certificate-wrapper {
  margin-top: 24px;
  display: flex;
  justify-content: center;
}

.certificate-card {
  width: 100%;
  max-width: 680px;
  background: linear-gradient(145deg, #121b2d 0%, #0d1422 100%);
  border: 2px solid rgba(50, 200, 120, 0.35);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(50, 200, 120, 0.12);
  position: relative;
}

.cert-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-border-strong);
  margin-bottom: 20px;
}

.cert-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-success-soft);
  color: var(--color-success);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.85rem;
}

.cert-brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-text-muted);
}

.cert-body {
  text-align: center;
  margin-bottom: 24px;
}

.cert-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 4px;
}

.cert-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.cert-reward-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: rgba(245, 189, 66, 0.08);
  border: 1px solid rgba(245, 189, 66, 0.25);
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.cert-reward-title {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cert-reward-val {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--color-gold);
  line-height: 1.1;
  margin-top: 2px;
}

.cert-details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  background-color: var(--color-surface);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: left;
  margin-bottom: 20px;
}

.cert-detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cert-detail-label {
  font-size: 0.825rem;
  color: var(--color-text-soft);
}

.cert-detail-val {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.cert-code-val {
  font-family: var(--font-family-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-gold);
  letter-spacing: 1px;
}

.cert-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  padding: 12px;
  border-radius: var(--radius-sm);
  text-align: left;
}

.cert-notice i {
  font-size: 1.25rem;
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.cert-notice p {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.cert-footer-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cert-secondary-actions {
  display: flex;
  gap: 10px;
}

.cert-secondary-actions .btn {
  flex: 1;
}

/* Rules Section */
.rules-section {
  padding: 40px 0;
  background-color: rgba(16, 23, 37, 0.4);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.rules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.rule-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.rule-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-soft);
  color: var(--color-primary-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.rule-icon-danger {
  color: #ff5252;
}

.rule-icon-success {
  color: var(--color-success);
}

.rule-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.rule-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* FAQ Accordion Section */
.faq-section {
  padding: 44px 0;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.accordion-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 12px;
}

.accordion-icon {
  font-size: 1.1rem;
  color: var(--color-text-soft);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion-header[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
  color: var(--color-primary-hover);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 20px;
  background-color: rgba(0, 0, 0, 0.15);
}

.accordion-header[aria-expanded="true"] + .accordion-content {
  padding: 0 20px 18px;
  max-height: 200px;
}

.accordion-content p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 32px 0 24px;
  background-color: #04070d;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.copyright {
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.footer-note {
  margin-bottom: 8px;
}

.footer-disclaimer {
  max-width: 680px;
  margin: 0 auto;
  opacity: 0.7;
  font-size: 0.75rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (min-width: 768px) {
  .hero-section {
    padding: 48px 0 36px;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-description {
    font-size: 1.05rem;
  }

  .task-card-meta {
    grid-template-columns: repeat(4, 1fr);
  }

  .rules-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cert-details-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cert-title {
    font-size: 1.75rem;
  }

  .volume-slider {
    width: 70px;
  }
}

@media (min-width: 1024px) {
  .rules-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Accessibility & Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}