/* Precision Marathon Pace Calculator - Neobrutalism Design with Dark Mode */

/* Global box-sizing */
.precision-marathon-pace-calculator,
.precision-marathon-pace-calculator *,
.precision-marathon-pace-calculator *::before,
.precision-marathon-pace-calculator *::after {
  box-sizing: border-box;
}

/* Main container - 2px border, 8px radius, ultra-compact spacing */
.precision-marathon-pace-calculator {
  position: relative;
  max-width: 900px;
  width: 100%;
  margin: 8px auto;
  padding: 8px;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-container);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  line-height: 1.5;

  /* CSS Variables - Light mode (default) */
  --bg-primary: #f5f5f0;
  --bg-secondary: #fff;
  --bg-section: #fff;
  --border-color: #333;
  --text-primary: #222;
  --text-secondary: #555;
  --text-light: #666;
  --color-accent: #3498db;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-purple: #9b59b6;
  --color-teal: #1abc9c;
  --shadow-sm: 2px 2px 0 rgba(0,0,0,0.1);
  --shadow-md: 4px 4px 0 rgba(0,0,0,0.15);
  --shadow-lg: 8px 8px 0 rgba(0,0,0,0.15);
  --radius-container: 8px;
  --radius-section: 6px;
  --radius-button: 4px;
  --radius-input: 4px;
  --input-focus-bg: #fffacd;
  --title-color: #2c3e50;
  --title-shadow: 2px 2px 0 rgba(255,255,255,0.5);
  --btn-hover-overlay: rgba(0,0,0,0.1);
  --copy-btn-bg: #fff;
  --copy-btn-hover-bg: #f0f0f0;
}

/* Dark mode - manual toggle */
.precision-marathon-pace-calculator.dark {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-section: #2d2d2d;
  --border-color: #e0e0e0;
  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-light: #909090;
  --color-accent: #5dade2;
  --color-success: #52c77a;
  --color-warning: #f5b041;
  --color-danger: #ec7063;
  --color-purple: #af7ac5;
  --color-teal: #48d1cc;
  --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
  --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
  --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
  --input-focus-bg: #3a3a3a;
  --title-color: #7fb3d5;
  --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
  --btn-hover-overlay: rgba(255,255,255,0.1);
  --copy-btn-bg: #3a3a3a;
  --copy-btn-hover-bg: #4a4a4a;
}

/* System dark mode auto detection */
@media (prefers-color-scheme: dark) {
  .precision-marathon-pace-calculator:not(.dark):not(.light) {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-section: #2d2d2d;
    --border-color: #e0e0e0;
    --text-primary: #e8e8e8;
    --text-secondary: #b0b0b0;
    --text-light: #909090;
    --color-accent: #5dade2;
    --color-success: #52c77a;
    --color-warning: #f5b041;
    --color-danger: #ec7063;
    --color-purple: #af7ac5;
    --color-teal: #48d1cc;
    --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
    --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
    --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);
    --input-focus-bg: #3a3a3a;
    --title-color: #7fb3d5;
    --title-shadow: 2px 2px 0 rgba(0,0,0,0.5);
    --btn-hover-overlay: rgba(255,255,255,0.1);
    --copy-btn-bg: #3a3a3a;
    --copy-btn-hover-bg: #4a4a4a;
  }
}

/* Dark mode toggle button */
.dark-mode-toggle {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 6px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  font-size: 17.5px;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 10;
}

.dark-mode-toggle:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
}

.dark-mode-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Header */
.header {
  text-align: center;
  padding: 0 0 12px 0;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.title {
  font-size: 26px;
  font-weight: 700;
  color: var(--title-color);
  margin: 0 0 6px 0;
  text-shadow: var(--title-shadow);
}

.subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Main grid - 2 columns layout (desktop: input | result, mobile: vertical) */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

/* Input section (left) */
.input-section {
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 12px;
  box-shadow: var(--shadow-md);
}

/* Result section (right) - always visible */
.result-section {
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 12px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Watermark (only visible during image capture) */
.watermark {
  display: none;
  position: absolute;
  bottom: 8px;
  right: 12px;
  font-size: 12px;
  color: var(--text-light);
  opacity: 0.7;
  font-weight: 500;
  pointer-events: none;
}

.watermark.visible {
  display: block;
}

/* Section title */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  gap: 8px;
}

.section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-title svg {
  flex-shrink: 0;
}

/* Save image button */
.btn-save-image {
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 600;
  background: var(--color-purple);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.btn-save-image svg {
  flex-shrink: 0;
}

.btn-save-image:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
  background: linear-gradient(var(--btn-hover-overlay), var(--btn-hover-overlay)), var(--color-purple);
}

.btn-save-image:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.btn-save-image:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* For input section - keep original style */
.input-section .section-title {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 10px;
}

/* Input group */
.input-group {
  margin-bottom: 12px;
}

.input-group:last-child {
  margin-bottom: 0;
}

.input-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.input-label svg {
  flex-shrink: 0;
}

/* Input fields */
.input-field,
.select-field {
  width: 100%;
  padding: 8px 10px;
  font-size: 18px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  transition: all 0.2s;
}

.input-field:focus,
.select-field:focus {
  outline: none;
  background: var(--input-focus-bg);
  box-shadow: var(--shadow-sm);
}

.input-field::placeholder {
  color: var(--text-light);
}

/* Input with unit */
.input-with-unit {
  display: flex;
  gap: 6px;
}

.input-with-unit .input-field {
  flex: 1;
}

.input-with-unit .select-field {
  width: auto;
  min-width: 80px;
}

/* Radio group */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  padding: 8px 10px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
  color: var(--text-primary);
  cursor: pointer;
}

.radio-label input[type="radio"] {
  cursor: pointer;
  accent-color: var(--color-accent);
}

/* Preset buttons */
.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.btn-preset {
  padding: 8px 14px;
  font-size: 16px;
  font-weight: 600;
  background: var(--color-success);
  color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.btn-preset:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
  background: linear-gradient(var(--btn-hover-overlay), var(--btn-hover-overlay)), var(--color-success);
}

.btn-preset:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Time inputs */
.time-inputs {
  display: flex;
  gap: 6px;
}

.time-input-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.time-unit {
  font-size: 14px;
  color: var(--text-secondary);
  text-align: center;
}

/* Button group */
.button-group {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.btn {
  flex: 1;
  padding: 10px 16px;
  font-size: 18px;
  font-weight: 600;
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn svg {
  flex-shrink: 0;
}

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

.btn-primary:hover {
  transform: translate(1px, 1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
  background: linear-gradient(var(--btn-hover-overlay), var(--btn-hover-overlay)), var(--color-accent);
}

.btn-primary:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.btn-secondary {
  background: var(--color-warning);
  color: #fff;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  transform: translate(0.5px, 0.5px);
  box-shadow: 1.5px 1.5px 0 rgba(0,0,0,0.15);
  background: linear-gradient(var(--btn-hover-overlay), var(--btn-hover-overlay)), var(--color-warning);
}

.btn-secondary:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

/* Result display */
.result-display {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
  padding: 10px;
  margin-bottom: 12px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}

.result-item:not(:last-child) {
  border-bottom: 1px dashed var(--border-color);
}

.result-label {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 500;
}

.result-value {
  font-size: 22px;
  color: var(--color-accent);
  font-weight: 700;
}

/* Split times */
.split-times {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.split-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-color);
}

.table-wrapper {
  flex: 1;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-input);
}

.split-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.split-table th,
.split-table td {
  padding: 8px 10px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.split-table th {
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 15px;
  position: sticky;
  top: 0;
}

.split-table tbody tr:hover {
  background: var(--input-focus-bg);
}

.split-table .no-data {
  color: var(--text-light);
  font-style: italic;
  padding: 20px;
}

/* Footer */
.footer {
  padding-top: 12px;
  border-top: 2px solid var(--border-color);
}

.notes {
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-section);
  padding: 10px 12px;
  box-shadow: var(--shadow-sm);
}

.notes-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 6px 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.notes-list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.notes-list li {
  margin-bottom: 4px;
}

/* Toast notification */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-section);
  color: var(--text-primary);
  padding: 12px 20px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-button);
  box-shadow: var(--shadow-lg);
  font-size: 16px;
  font-weight: 600;
  opacity: 0;
  transition: all 0.3s;
  z-index: 1000;
  max-width: 90%;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Responsive design - mobile (768px and below) */
@media (max-width: 768px) {
  .precision-marathon-pace-calculator {
    margin: 6px auto;
    padding: 6px;
  }

  .main-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .title {
    font-size: 22px;
  }

  .subtitle {
    font-size: 14px;
  }

  .input-section,
  .result-section {
    padding: 10px;
  }

  .section-title {
    font-size: 17px;
  }

  .input-label {
    font-size: 15px;
  }

  .input-field,
  .select-field {
    font-size: 16px;
  }

  .btn {
    font-size: 16px;
  }

  .result-value {
    font-size: 20px;
  }

  .time-inputs {
    flex-wrap: wrap;
  }

  .time-input-wrapper {
    min-width: calc(50% - 3px);
  }

  .btn-save-image {
    padding: 5px 10px;
    font-size: 13px;
  }

  .btn-save-image span {
    display: none;
  }

  .section-header {
    gap: 6px;
  }
}

/* Responsive design - small mobile (480px and below) */
@media (max-width: 480px) {
  .precision-marathon-pace-calculator {
    border-width: 1px;
  }

  .title {
    font-size: 20px;
  }

  .subtitle {
    font-size: 13px;
  }

  .section-title {
    font-size: 16px;
  }

  .input-label {
    font-size: 14px;
  }

  .input-field,
  .select-field {
    font-size: 15px;
    padding: 7px 9px;
  }

  .btn {
    font-size: 15px;
    padding: 9px 14px;
  }

  .button-group {
    flex-direction: column;
    gap: 6px;
  }

  .time-input-wrapper {
    min-width: 100%;
  }

  .preset-buttons {
    flex-direction: column;
  }

  .btn-preset {
    width: 100%;
  }
}

/* 2026 ROBERIN tool redesign: warm paper, compact grid, thick brown linework. */
.precision-marathon-pace-calculator {
  max-width: 1180px;
  margin: 20px auto;
  padding: 20px;
  border: 2px solid var(--border-color);
  border-radius: 0;
  font-family: 'Noto Sans KR', 'Malgun Gothic', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
  --bg-primary: #f9f1e7;
  --bg-secondary: #fff8ed;
  --bg-section: #f8efe2;
  --bg-soft: #f3e4d1;
  --border-color: #6b5745;
  --text-primary: #34281f;
  --text-secondary: #574838;
  --text-light: #756554;
  --color-accent: #d2aa55;
  --color-success: #4f7d55;
  --color-warning: #ddbf6f;
  --color-danger: #9d4939;
  --color-purple: #7a412f;
  --color-teal: #4f7d94;
  --shadow-sm: 2px 2px 0 rgba(82, 65, 50, .22);
  --shadow-md: 4px 4px 0 rgba(82, 65, 50, .24);
  --shadow-lg: 8px 8px 0 rgba(82, 65, 50, .22);
  --radius-container: 0;
  --radius-section: 0;
  --radius-button: 0;
  --radius-input: 0;
  --input-focus-bg: #fff3bf;
  --title-color: #34281f;
  --title-shadow: 2px 2px 0 rgba(255, 248, 237, .95);
  --btn-hover-overlay: rgba(52, 40, 31, .08);
  --copy-btn-bg: #fff8ed;
  --copy-btn-hover-bg: #f3e4d1;
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(rgba(107, 87, 69, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 87, 69, .055) 1px, transparent 1px);
  background-size: 18px 18px;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  overflow: clip;
}

.precision-marathon-pace-calculator.dark,
body[data-scheme="dark"] .precision-marathon-pace-calculator:not(.light),
body[data-scheme="inverse"] .precision-marathon-pace-calculator:not(.light) {
  --bg-primary: #201811;
  --bg-secondary: #241c15;
  --bg-section: #2b2119;
  --bg-soft: #33271d;
  --border-color: #a98b6b;
  --text-primary: #f2e4cf;
  --text-secondary: #f0dfc5;
  --text-light: #d8c2a5;
  --color-accent: #d2aa55;
  --color-success: #8fac7c;
  --color-warning: #ddbf6f;
  --color-danger: #e08f75;
  --color-purple: #c99376;
  --color-teal: #7fb0c3;
  --shadow-sm: 2px 2px 0 rgba(0, 0, 0, .32);
  --shadow-md: 4px 4px 0 rgba(0, 0, 0, .36);
  --shadow-lg: 8px 8px 0 rgba(0, 0, 0, .38);
  --input-focus-bg: #3a2c20;
  --title-color: #f2e4cf;
  --title-shadow: 2px 2px 0 rgba(0, 0, 0, .5);
  --copy-btn-bg: #33271d;
  --copy-btn-hover-bg: #3c2d21;
  background-image:
    linear-gradient(rgba(210, 170, 85, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(210, 170, 85, .07) 1px, transparent 1px);
}

@media (prefers-color-scheme: dark) {
  .precision-marathon-pace-calculator:not(.dark):not(.light) {
    --bg-primary: #201811;
    --bg-secondary: #241c15;
    --bg-section: #2b2119;
    --bg-soft: #33271d;
    --border-color: #a98b6b;
    --text-primary: #f2e4cf;
    --text-secondary: #f0dfc5;
    --text-light: #d8c2a5;
    --color-accent: #d2aa55;
    --color-success: #8fac7c;
    --color-warning: #ddbf6f;
    --color-danger: #e08f75;
    --color-purple: #c99376;
    --color-teal: #7fb0c3;
    --shadow-sm: 2px 2px 0 rgba(0, 0, 0, .32);
    --shadow-md: 4px 4px 0 rgba(0, 0, 0, .36);
    --shadow-lg: 8px 8px 0 rgba(0, 0, 0, .38);
    --input-focus-bg: #3a2c20;
    --title-color: #f2e4cf;
    --title-shadow: 2px 2px 0 rgba(0, 0, 0, .5);
    --copy-btn-bg: #33271d;
    --copy-btn-hover-bg: #3c2d21;
    background-image:
      linear-gradient(rgba(210, 170, 85, .07) 1px, transparent 1px),
      linear-gradient(90deg, rgba(210, 170, 85, .07) 1px, transparent 1px);
  }
}

.precision-marathon-pace-calculator .dark-mode-toggle {
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-secondary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.precision-marathon-pace-calculator .header {
  margin: 0 0 16px;
  padding: 0 46px 14px;
  border-bottom: 3px double var(--border-color);
  text-align: center;
}

.precision-marathon-pace-calculator .title {
  margin: 0 0 6px;
  color: var(--title-color);
  font-size: 28px;
  font-weight: 800;
  line-height: 1.18;
  text-shadow: var(--title-shadow);
  letter-spacing: 0;
}

.precision-marathon-pace-calculator .subtitle {
  max-width: 760px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.45;
}

.precision-marathon-pace-calculator .main-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 15px;
  margin: 0 0 15px;
  align-items: stretch;
}

.precision-marathon-pace-calculator .input-section,
.precision-marathon-pace-calculator .result-section,
.precision-marathon-pace-calculator .notes {
  min-width: 0;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-secondary);
  box-shadow: var(--shadow-md);
}

.precision-marathon-pace-calculator .input-section,
.precision-marathon-pace-calculator .result-section {
  padding: 15px;
}

.precision-marathon-pace-calculator .section-header,
.precision-marathon-pace-calculator .input-section .section-title,
.precision-marathon-pace-calculator .split-title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.precision-marathon-pace-calculator .section-title,
.precision-marathon-pace-calculator .split-title,
.precision-marathon-pace-calculator .notes-title {
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
}

.precision-marathon-pace-calculator .section-title svg,
.precision-marathon-pace-calculator .split-title svg,
.precision-marathon-pace-calculator .notes-title svg,
.precision-marathon-pace-calculator .input-label svg {
  color: var(--color-purple);
  stroke-width: 2.2;
}

.precision-marathon-pace-calculator .input-group {
  margin-bottom: 12px;
}

.precision-marathon-pace-calculator .input-label {
  margin-bottom: 5px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.25;
}

.precision-marathon-pace-calculator .radio-group {
  display: grid;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-section);
}

.precision-marathon-pace-calculator .radio-label {
  min-height: 34px;
  padding: 6px 8px;
  border: 1px dashed rgba(107, 87, 69, .45);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.25;
}

.precision-marathon-pace-calculator.dark .radio-label,
body[data-scheme="dark"] .precision-marathon-pace-calculator:not(.light) .radio-label,
body[data-scheme="inverse"] .precision-marathon-pace-calculator:not(.light) .radio-label {
  border-color: rgba(169, 139, 107, .55);
}

.precision-marathon-pace-calculator .radio-label input[type="radio"] {
  flex: 0 0 auto;
  accent-color: var(--color-accent);
}

.precision-marathon-pace-calculator .input-with-unit,
.precision-marathon-pace-calculator .time-inputs {
  gap: 8px;
}

.precision-marathon-pace-calculator .input-field,
.precision-marathon-pace-calculator .select-field {
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: 750;
  box-shadow: inset 1px 1px 0 rgba(107, 87, 69, .14);
}

.precision-marathon-pace-calculator .input-field:focus,
.precision-marathon-pace-calculator .select-field:focus {
  outline: 3px solid var(--color-teal);
  outline-offset: 1px;
  background: var(--input-focus-bg);
  box-shadow: inset 1px 1px 0 rgba(107, 87, 69, .22);
}

.precision-marathon-pace-calculator .select-field {
  min-width: 88px;
}

.precision-marathon-pace-calculator .time-input-wrapper {
  min-width: 0;
}

.precision-marathon-pace-calculator .time-unit {
  color: var(--text-light);
  font-size: 12px;
  font-weight: 700;
}

.precision-marathon-pace-calculator .split-unit-display::before {
  content: "";
}

.precision-marathon-pace-calculator .preset-buttons {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.precision-marathon-pace-calculator .btn-preset,
.precision-marathon-pace-calculator .btn-save-image,
.precision-marathon-pace-calculator .btn {
  border: 1px solid var(--border-color);
  border-radius: 0;
  font-family: inherit;
  letter-spacing: 0;
}

.precision-marathon-pace-calculator .btn-preset {
  min-height: 36px;
  padding: 8px 10px;
  background: var(--bg-section);
  color: var(--text-primary);
  box-shadow: 2px 2px 0 rgba(82, 65, 50, .2);
  font-size: 14px;
  font-weight: 800;
}

.precision-marathon-pace-calculator .btn-preset:hover,
.precision-marathon-pace-calculator .btn-save-image:hover,
.precision-marathon-pace-calculator .btn:hover {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(82, 65, 50, .18);
}

.precision-marathon-pace-calculator .button-group {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: 10px;
  margin-top: 14px;
}

.precision-marathon-pace-calculator .btn {
  min-height: 42px;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 850;
  box-shadow: 4px 4px 0 rgba(82, 65, 50, .24);
}

.precision-marathon-pace-calculator .btn-primary {
  background: var(--color-accent);
  color: #241c15;
}

.precision-marathon-pace-calculator .btn-secondary {
  background: var(--bg-soft);
  color: var(--text-primary);
}

.precision-marathon-pace-calculator .btn-save-image {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 7px 10px;
  background: var(--color-accent);
  color: #241c15;
  box-shadow: 2px 2px 0 rgba(82, 65, 50, .22);
  font-size: 13px;
  font-weight: 850;
}

.precision-marathon-pace-calculator .result-display {
  margin-bottom: 12px;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-section);
}

.precision-marathon-pace-calculator .result-item {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1fr);
  gap: 10px;
  min-height: 46px;
  padding: 9px 11px;
}

.precision-marathon-pace-calculator .result-label {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 800;
}

.precision-marathon-pace-calculator .result-value {
  color: var(--color-purple);
  font-family: 'Courier New', monospace;
  font-size: 22px;
  font-weight: 900;
  text-align: right;
  overflow-wrap: anywhere;
}

.precision-marathon-pace-calculator.dark .result-value,
body[data-scheme="dark"] .precision-marathon-pace-calculator:not(.light) .result-value,
body[data-scheme="inverse"] .precision-marathon-pace-calculator:not(.light) .result-value {
  color: var(--color-accent);
}

.precision-marathon-pace-calculator .split-times {
  min-height: 0;
}

.precision-marathon-pace-calculator .table-wrapper {
  max-height: 388px;
  border: 1px solid var(--border-color);
  border-radius: 0;
  background: var(--bg-secondary);
  overflow: auto;
}

.precision-marathon-pace-calculator .split-table {
  min-width: 520px;
  color: var(--text-primary);
  font-size: 14px;
}

.precision-marathon-pace-calculator .split-table th,
.precision-marathon-pace-calculator .split-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(107, 87, 69, .35);
}

.precision-marathon-pace-calculator .split-table th {
  background: var(--bg-soft);
  color: var(--text-primary);
  font-weight: 850;
}

.precision-marathon-pace-calculator .split-table tbody tr:hover {
  background: var(--input-focus-bg);
}

.precision-marathon-pace-calculator .split-table .no-data {
  padding: 18px 12px;
  color: var(--text-light);
  font-style: normal;
  font-weight: 650;
}

.precision-marathon-pace-calculator .footer {
  padding-top: 0;
  border-top: 0;
}

.precision-marathon-pace-calculator .notes {
  padding: 12px 14px;
  background: var(--bg-section);
}

.precision-marathon-pace-calculator .notes-list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding-left: 0;
  list-style: none;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.55;
}

.precision-marathon-pace-calculator .notes-list li {
  position: relative;
  padding-left: 18px;
}

.precision-marathon-pace-calculator .notes-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: .72em;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  transform: translateY(-50%);
}

.precision-marathon-pace-calculator .notes-list li::after {
  content: none !important;
  display: none !important;
}

.precision-marathon-pace-calculator .toast {
  border-radius: 0;
  background: var(--bg-section);
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .precision-marathon-pace-calculator {
    margin: 16px auto;
    padding: 14px;
  }

  .precision-marathon-pace-calculator .main-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .precision-marathon-pace-calculator {
    margin: 10px auto;
    padding: 10px;
    border-width: 2px;
  }

  .precision-marathon-pace-calculator .dark-mode-toggle {
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
  }

  .precision-marathon-pace-calculator .header {
    padding: 0 38px 12px;
    margin-bottom: 12px;
  }

  .precision-marathon-pace-calculator .title {
    font-size: 22px;
    word-break: keep-all;
    overflow-wrap: anywhere;
  }

  .precision-marathon-pace-calculator .subtitle {
    font-size: 13px;
  }

  .precision-marathon-pace-calculator .input-section,
  .precision-marathon-pace-calculator .result-section {
    padding: 11px;
  }

  .precision-marathon-pace-calculator .preset-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .precision-marathon-pace-calculator .time-inputs,
  .precision-marathon-pace-calculator .button-group {
    grid-template-columns: 1fr;
  }

  .precision-marathon-pace-calculator .time-input-wrapper {
    min-width: 0;
  }

  .precision-marathon-pace-calculator .result-item {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .precision-marathon-pace-calculator .result-value {
    text-align: left;
    font-size: 20px;
  }

  .precision-marathon-pace-calculator .btn-save-image span {
    display: inline;
  }
}

@media (max-width: 370px) {
  .precision-marathon-pace-calculator {
    padding: 8px;
  }

  .precision-marathon-pace-calculator .header {
    padding-right: 36px;
    padding-left: 0;
  }

  .precision-marathon-pace-calculator .btn-save-image span {
    display: none;
  }

  .precision-marathon-pace-calculator .split-table {
    min-width: 480px;
  }
}

/* Phase 2 article body - mirrors the live 1RM article component system */
body.postid-1619 .entry-content > .roberin-leaderboard-ad {
  box-sizing: border-box !important;
  width: min(728px, calc(100% - 24px)) !important;
  max-width: 728px !important;
  min-height: 90px !important;
  margin-right: auto !important;
  margin-left: auto !important;
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

body.postid-1619 .entry-content > .roberin-leaderboard-ad--after-tool {
  margin-top: 24px !important;
  margin-bottom: 28px !important;
}

body.postid-1619 .entry-content > .roberin-leaderboard-ad--bottom {
  margin-top: 28px !important;
  margin-bottom: 36px !important;
}

body.postid-1619 .entry-content > .roberin-leaderboard-ad ins.adsbygoogle,
body.postid-1619 .entry-content > .roberin-leaderboard-ad .roberin-qa-ad-placeholder {
  display: block !important;
  width: min(728px, 100%) !important;
  max-width: 100% !important;
  height: 90px !important;
  min-height: 90px !important;
  margin: 0 auto !important;
  padding: 0 !important;
}

.roberin-article-body.precision-marathon-article {
  --pm-article-paper: #f8efe2;
  --pm-article-panel: #fff9ee;
  --pm-article-heading: #e2edd8;
  --pm-article-ink: #34281f;
  --pm-article-muted: #574838;
  --pm-article-line: #6b5745;
  --pm-article-line-soft: rgba(107, 87, 69, .45);
  --pm-article-link: #4f7d94;
  --pm-article-yellow: #ddbf6f;
  --pm-article-coral: #bf7358;
  --pm-article-code: #8b4f3f;

  box-sizing: border-box !important;
  width: min(950px, calc(100% - 24px)) !important;
  max-width: 950px !important;
  margin: 28px auto 40px !important;
  padding: 30px 34px !important;
  color: var(--pm-article-ink) !important;
  background:
    linear-gradient(90deg, rgba(107, 87, 69, .035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(107, 87, 69, .03) 1px, transparent 1px),
    var(--pm-article-paper) !important;
  background-size: 18px 18px !important;
  border: 2px solid var(--pm-article-line) !important;
  border-radius: 0 !important;
  box-shadow: 4px 4px 0 rgba(82, 65, 50, .42) !important;
  font-family: "Noto Sans KR", "Malgun Gothic", -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-size: 16px !important;
  line-height: 1.78 !important;
  overflow: visible !important;
  transform: none !important;
}

.roberin-article-body.precision-marathon-article,
.roberin-article-body.precision-marathon-article * {
  box-sizing: border-box !important;
}

.precision-marathon-article > header,
.precision-marathon-article > section {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

.precision-marathon-article > section {
  margin-top: 34px !important;
}

.precision-marathon-article h2,
.precision-marathon-article h3,
.precision-marathon-article p,
.precision-marathon-article li,
.precision-marathon-article summary,
.precision-marathon-article a,
.precision-marathon-article strong,
.precision-marathon-article code,
.precision-marathon-article th,
.precision-marathon-article td {
  -webkit-text-fill-color: currentColor !important;
  color: inherit !important;
  letter-spacing: 0 !important;
}

body.postid-1619 .entry-content .precision-marathon-article h2,
.precision-marathon-article h2 {
  display: block !important;
  width: auto !important;
  max-width: none !important;
  margin: 34px 0 16px !important;
  padding: 9px 12px !important;
  color: var(--pm-article-ink) !important;
  background: var(--pm-article-heading) !important;
  border: 2px solid var(--pm-article-line) !important;
  border-radius: 0 !important;
  box-shadow: 3px 3px 0 rgba(82, 65, 50, .3) !important;
  font-size: 24px !important;
  font-weight: 800 !important;
  line-height: 1.35 !important;
  text-decoration: none !important;
  word-break: keep-all !important;
  overflow-wrap: anywhere !important;
}

.precision-marathon-article h2::before,
.precision-marathon-article h2::after,
.precision-marathon-article h3::before,
.precision-marathon-article h3::after {
  display: none !important;
  content: none !important;
}

.precision-marathon-article__hero h2 {
  margin-top: 34px !important;
}

body.postid-1619 .entry-content .precision-marathon-article h3,
.precision-marathon-article h3 {
  display: block !important;
  width: auto !important;
  max-width: none !important;
  margin: 26px 0 12px !important;
  padding: 0 0 7px !important;
  color: var(--pm-article-ink) !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  font-size: 19px !important;
  font-weight: 800 !important;
  line-height: 1.35 !important;
  text-decoration: none !important;
  word-break: keep-all !important;
  overflow-wrap: anywhere !important;
}

.precision-marathon-article p,
.precision-marathon-article li,
.precision-marathon-article td {
  margin: 0 !important;
  color: var(--pm-article-muted) !important;
  font-size: 16px !important;
  font-weight: 400 !important;
  line-height: 1.78 !important;
  word-break: keep-all !important;
  overflow-wrap: anywhere !important;
}

.precision-marathon-article p + p {
  margin-top: 12px !important;
}

.precision-marathon-article strong {
  font-weight: 800 !important;
}

.precision-marathon-article__kicker {
  display: block !important;
  margin: 0 0 16px !important;
  color: var(--pm-article-muted) !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  font-size: 16px !important;
  font-weight: 400 !important;
  line-height: 1.78 !important;
}

.precision-marathon-article__nav {
  display: block !important;
  margin: 16px 0 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  line-height: 1.78 !important;
}

.precision-marathon-article__nav a {
  display: inline !important;
  margin-right: 14px !important;
  padding: 0 0 .32px !important;
  color: var(--pm-article-link) !important;
  background-image: linear-gradient(to right, var(--pm-article-link) 0%, var(--pm-article-link) 98%) !important;
  background-position: left 100% !important;
  background-repeat: repeat-x !important;
  background-size: 100% 1px !important;
  border: 0 !important;
  border-bottom: 2px solid rgba(102, 141, 161, .35) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  font-size: 16px !important;
  font-weight: 700 !important;
  line-height: 1.78 !important;
  text-decoration: none !important;
  word-break: keep-all !important;
}

.precision-marathon-article__grid,
.precision-marathon-article__use-grid {
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

.precision-marathon-article__card,
.precision-marathon-article__process,
.precision-marathon-article__use,
.precision-marathon-article__notice {
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  color: var(--pm-article-ink) !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

.precision-marathon-article__use span {
  color: var(--pm-article-muted) !important;
}

.precision-marathon-article__use strong {
  color: var(--pm-article-ink) !important;
}

.precision-marathon-article code {
  display: inline !important;
  max-width: 100% !important;
  padding: 2px 6px !important;
  color: var(--pm-article-code) !important;
  background: #fff4dd !important;
  border: 1px solid var(--pm-article-line-soft) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace !important;
  font-size: .92em !important;
  line-height: 1.78 !important;
  overflow-wrap: anywhere !important;
}

.precision-marathon-article__steps {
  display: block !important;
  margin: 16px 0 20px !important;
  padding: 0 !important;
  list-style: none !important;
  counter-reset: pm-step !important;
}

.precision-marathon-article__steps li {
  position: relative !important;
  display: list-item !important;
  min-height: 0 !important;
  margin: 0 0 10px !important;
  padding: 0 0 0 28px !important;
  color: var(--pm-article-muted) !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  list-style: none !important;
  counter-increment: pm-step !important;
}

.precision-marathon-article__steps li::before {
  position: absolute !important;
  top: .075em !important;
  left: 0 !important;
  display: block !important;
  width: 18px !important;
  height: 18px !important;
  color: var(--pm-article-ink) !important;
  background: var(--pm-article-yellow) !important;
  border: 1px solid var(--pm-article-line) !important;
  border-radius: 0 !important;
  box-shadow: 1px 1px 0 rgba(82, 65, 50, .32) !important;
  content: counter(pm-step) !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  line-height: 16px !important;
  text-align: center !important;
}

.precision-marathon-article__steps--bullets {
  counter-reset: none !important;
}

.precision-marathon-article__steps--bullets li {
  counter-increment: none !important;
}

.precision-marathon-article__steps--bullets li::before {
  top: .05em !important;
  left: 2px !important;
  width: auto !important;
  height: auto !important;
  color: var(--pm-article-coral) !important;
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
  content: "■" !important;
  font-size: 10px !important;
  font-weight: 400 !important;
  line-height: 1.7 !important;
}

.precision-marathon-article__li-text {
  display: block !important;
  min-width: 0 !important;
}

.precision-marathon-article__table-wrap {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  overflow-x: auto !important;
}

.precision-marathon-article__table {
  width: 100% !important;
  min-width: 640px !important;
  margin: 20px 0 !important;
  color: var(--pm-article-ink) !important;
  background: var(--pm-article-panel) !important;
  border: 2px solid var(--pm-article-line) !important;
  border-collapse: collapse !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  font-size: 16px !important;
  line-height: 1.78 !important;
}

.precision-marathon-article__table th,
.precision-marathon-article__table td {
  padding: 10px 12px !important;
  border: 1px solid var(--pm-article-line-soft) !important;
  text-align: left !important;
  vertical-align: top !important;
}

.precision-marathon-article__table th {
  color: var(--pm-article-ink) !important;
  background: var(--pm-article-heading) !important;
  font-weight: 800 !important;
  line-height: 1.2 !important;
}

.precision-marathon-article details {
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  color: var(--pm-article-ink) !important;
  background: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

.precision-marathon-article details + details {
  margin-top: 10px !important;
}

.precision-marathon-article summary {
  display: list-item !important;
  margin: 0 !important;
  padding: 0 !important;
  color: var(--pm-article-ink) !important;
  font-size: 16px !important;
  font-weight: 400 !important;
  line-height: 1.78 !important;
  list-style-position: inside !important;
  list-style-type: disclosure-closed !important;
  cursor: pointer !important;
}

.precision-marathon-article details[open] summary {
  list-style-type: disclosure-open !important;
}

.precision-marathon-article summary::marker {
  color: var(--pm-article-ink) !important;
  font-size: 16px !important;
}

.precision-marathon-article details p {
  margin-top: 8px !important;
}

@media (max-width: 760px) {
  body.postid-1619 .entry-content > .roberin-leaderboard-ad {
    width: min(728px, calc(100% - 16px)) !important;
    min-height: 78px !important;
  }

  body.postid-1619 .entry-content > .roberin-leaderboard-ad ins.adsbygoogle,
  body.postid-1619 .entry-content > .roberin-leaderboard-ad .roberin-qa-ad-placeholder {
    height: 78px !important;
    min-height: 78px !important;
  }

  .roberin-article-body.precision-marathon-article {
    width: min(430px, calc(100% - 16px)) !important;
    padding: 22px 18px !important;
    margin-top: 24px !important;
    margin-bottom: 30px !important;
    box-shadow: 4px 4px 0 rgba(82, 65, 50, .36) !important;
  }

  .precision-marathon-article > section {
    margin-top: 28px !important;
  }

  body.postid-1619 .entry-content .precision-marathon-article h2,
  .precision-marathon-article h2 {
    margin-top: 28px !important;
    font-size: 21px !important;
    line-height: 1.34 !important;
  }

  body.postid-1619 .entry-content .precision-marathon-article h3,
  .precision-marathon-article h3 {
    font-size: 18px !important;
  }

  .precision-marathon-article p,
  .precision-marathon-article li,
  .precision-marathon-article summary,
  .precision-marathon-article td,
  .precision-marathon-article th,
  .precision-marathon-article__kicker,
  .precision-marathon-article__nav a {
    font-size: 15px !important;
  }

  .precision-marathon-article__nav a {
    margin-right: 10px !important;
  }

  .precision-marathon-article__table {
    min-width: 560px !important;
  }
}