/* Core Variables */
:root {
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --accent: #2563eb;
  --success: #16a34a;
  --danger: #dc2626;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.04);
}

body.dark-theme {
  --bg-primary: #090d16;
  --bg-surface: #111827;
  --bg-subtle: #1f2937;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: #374151;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: env(safe-area-inset-top);
  padding-right: env(safe-area-inset-right);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
}

/* ZERO LAYOUT SHIFT ADS */
.ad-slot {
  display: none !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  overflow: hidden !important;
}

.main-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px;
  flex: 1;
}

/* Header */
.app-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.logo a {
  text-decoration: none;
  color: inherit;
  font-size: 1.25rem;
  font-weight: 700;
}
.badge-free {
  background: #ecfdf5;
  color: #059669;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 9999px;
  border: 1px solid #a7f3d0;
}
.btn-install {
  background: #2563eb;
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-theme {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
}

/* Workstation Card & Tabs */
.workstation-card, .content-card, .log-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--card-shadow);
  margin-bottom: 24px;
}

.workstation-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.tab-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.tab-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.timer-input-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.input-task {
  flex: 2;
  min-width: 240px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-main);
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
}
.select-project {
  padding: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-main);
  border-radius: 8px;
  font-size: 0.95rem;
  outline: none;
}
.billable-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-subtle);
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
}
.currency-dropdown {
  border: none;
  background: transparent;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-main);
}
.rate-input-box {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
}
.rate-input-box input {
  width: 55px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 3px 6px;
  border-radius: 4px;
}
.timer-display {
  font-size: 1.85rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 130px;
  text-align: center;
}
.btn-timer {
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-timer.start {
  background: var(--success);
  color: #fff;
}
.btn-timer.stop {
  background: var(--danger);
  color: #fff;
}

.quick-modes {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.mode-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.mode-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Daily Goal Bar */
.goal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.goal-select {
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 6px;
  margin-left: 6px;
}
.progress-track {
  width: 100%;
  height: 12px;
  background: var(--bg-subtle);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #10b981);
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--card-shadow);
}
.metric-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
}
.metric-value.highlight {
  color: var(--success);
}
.export-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.btn-action {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
}

/* Weekly Visual Bars */
.weekly-bars {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  height: 90px;
  gap: 10px;
  padding-top: 10px;
}
.day-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  height: 100%;
  justify-content: flex-end;
}
.bar-track {
  width: 100%;
  max-width: 24px;
  height: 60px;
  background: var(--bg-subtle);
  border-radius: 6px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.bar-fill {
  width: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: height 0.3s;
}
.day-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Activity Log */
.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}
.privacy-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.entries-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.empty-state {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.entry-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-subtle);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.entry-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.entry-project {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--border-color);
}
.entry-billable {
  color: var(--success);
  font-weight: 600;
  font-size: 0.85rem;
}
.btn-repeat {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
}
.btn-del {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
}

/* Content & FAQs */
.content-card h2 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}
.content-card h3 {
  font-size: 1.05rem;
  margin: 18px 0 8px;
}
.content-card p {
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}
.faq-item {
  background: var(--bg-subtle);
  padding: 16px;
  border-radius: 8px;
}
.faq-item p {
  margin-top: 6px;
  margin-bottom: 0;
}

/* PWA Modal */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 16px;
}
.modal-box {
  background: var(--bg-surface);
  border-radius: 14px;
  max-width: 460px;
  width: 100%;
  padding: 24px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}
.modal-step {
  background: var(--bg-subtle);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 10px;
  font-size: 0.9rem;
}
.modal-step p {
  margin-top: 4px;
  color: var(--text-muted);
}

/* Footer */
.app-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 48px 24px 24px;
  margin-top: auto;
}
.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1fr;
  gap: 36px;
}
@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
.footer-logo {
  font-size: 1.2rem;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.footer-heading {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-main);
  margin-bottom: 14px;
  font-weight: 700;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-bottom {
  max-width: 1100px;
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}