/* CSS Custom Properties (Design Tokens)
   Color tokens live in colors.css. */
:root {
  /* Typography */
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', 'Monaco', 'Consolas', 'Liberation Mono', monospace;

  /* Borders */
  --border-width: 2px;
  --border-width-thick: 3px;
  --border-radius: 0;

  /* Transitions */
  --transition-fast: 0.1s;
  --transition-normal: 0.2s;

  /* Z-index layers */
  --z-tooltip: 1000;
  --z-modal: 2000;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  overflow-x: clip;
}

body {
  overflow-x: clip;
  max-width: 100vw;
  font-family: var(--font-sans);
  background-color: var(--color-white);
  color: var(--color-black);
  line-height: 1.6;
  min-height: 100vh;
  padding: 0;
}

/* ==========================================================================
   Button System
   ==========================================================================
   Base class: .btn
   Sizes: .btn--sm
   ========================================================================== */

/* Base Button Styles */
button,
.btn {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  border: var(--border-width) solid var(--color-black);
  transition: all var(--transition-normal);
  padding: 12px 24px;
  background-color: var(--color-white);
  color: var(--color-black);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

button:hover:not(:disabled):not(.edit-add-row-btn),
.btn:hover:not(:disabled) {
  background-color: var(--color-black);
  color: var(--color-white);
}

button:disabled,
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

button:active:not(:disabled),
.btn:active:not(:disabled) {
  transform: translateY(1px);
}

/* --------------------------------------------------------------------------
   Button Sizes
   -------------------------------------------------------------------------- */

.btn--sm {
  padding: 6px 14px;
  font-size: 11px;
}

/* --------------------------------------------------------------------------
   Button Classes
   -------------------------------------------------------------------------- */

/* View data link styled as small button */
.btn-view-data {
  padding: 6px 14px;
  font-size: 11px;
  background-color: var(--color-black);
  color: var(--color-white);
  text-decoration: none;
  margin-top: 10px;
}

.btn-view-data:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

/* Info Pages */
.info-page {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 40px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .info-page {
    padding-top: 20px;
  }

  /* Modal */
  .modal-container {
    max-height: 85vh;
  }
}

@media (max-width: 480px) {
  .info-page {
    padding-top: 10px;
  }

  button {
    font-size: 12px;
    padding: 12px;
  }

  /* Modal */
  .modal-overlay {
    padding: 0;
    align-items: stretch;
  }

  .modal-container {
    max-width: 100%;
    max-height: 100vh;
    max-height: 100dvh;
    border-left: none;
    border-right: none;
  }

  .modal-header {
    padding: 10px 16px;
  }

  .modal-header h2 {
    font-size: 13px;
  }

  .modal-close {
    width: 24px;
    height: 24px;
    font-size: 18px;
  }
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  padding: 20px;
}

/* Modal Container */
.modal-container {
  background-color: var(--color-white);
  border: var(--border-width-thick) solid var(--color-black);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: var(--border-width) solid var(--color-black);
}

.modal-header h2 {
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0;
  border: none;
  padding: 0;
}

.modal-close {
  width: 30px;
  height: 30px;
  padding: 0;
  font-size: 20px;
  line-height: 1;
  background: none;
  border: none;
  cursor: pointer;
}

.modal-close:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* ============================================================================
   Edit Transactions Mode
   ============================================================================ */

#edit-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 20px 40px;
}

/* --- Add Row button --- */
.edit-add-row-btn {
  display: block;
  width: 100%;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-gray-600);
  background: var(--color-white);
  border: 1px dashed var(--color-gray-400);
  cursor: pointer;
  text-align: center;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.edit-add-row-btn:hover {
  background-color: var(--color-accent-bg);
  color: var(--color-black);
  border-color: var(--color-accent-500);
}

/* --- Edit mode responsive --- */
@media (max-width: 768px) {
  #edit-container {
    padding: 0 10px 20px;
  }

  .edit-add-row-btn {
    font-size: 10px;
    padding: 8px;
  }
}

@media print {
  body {
    background-color: var(--color-white);
  }
}