@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=Noto+Sans+JP:wght@400;500;700&display=swap");
@import url("variables.css");

/* Base reset */
* {
  box-sizing: border-box;
}

/* Page background */
body {
  margin: 0;
  padding: 32px 20px;
  background:
    radial-gradient(1200px 1200px at 10% 20%, #1e293b 0%, transparent 60%),
    radial-gradient(
      800px 800px at 90% 10%,
      rgba(56, 189, 248, 0.2) 0%,
      transparent 60%
    ),
    linear-gradient(
      180deg,
      var(--color-bg-1),
      var(--color-bg-2) 40%,
      var(--color-bg-3)
    );
  color: var(--color-text);
  font-family:
    "Space Grotesk", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Meiryo",
    sans-serif;
}

/* Ambient glow layer */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(
    600px 600px at 70% 80%,
    rgba(251, 191, 36, 0.15),
    transparent 60%
  );
  pointer-events: none;
  z-index: -1;
}

/* Card container */
.calc {
  max-width: 820px;
  margin: 0 auto;
  padding: 28px 28px 20px;
  border-radius: 24px;
  background: var(--color-card);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(18px);
}

/* Title */
.calc_title {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--color-accent), #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow:
    0 0 20px rgba(56, 189, 248, 0.4),
    0 0 40px rgba(251, 191, 36, 0.2);
  filter: drop-shadow(0 0 12px rgba(56, 189, 248, 0.3));
  font-weight: 700;
}

/* Table layout */
.calc_table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 10px;
}

.calc_row {
  height: 44px;
}

/* Labels and tooltips */
.calc_label {
  text-align: left;
  padding: 4px 10px;
  font-weight: 500;
  color: var(--color-text-sub);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.08em;
  width: 35%;
}

.calc_label--formula {
  position: relative;
  cursor: help;
}

.calc_label--formula::before {
  content: "← ";
  color: var(--color-accent);
  font-weight: 700;
}

.calc_label--formula::after {
  content: attr(data-formula);
  position: absolute;
  left: 0;
  bottom: 100%;
  margin-bottom: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background-color: rgba(17, 24, 39, 0.95);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  border: 1px solid var(--color-accent);
  z-index: 10;
}

.calc_label--formula:hover::after {
  opacity: 1;
}

/* Cells and inputs */
.calc_cell {
  padding: 4px 8px;
  width: 20%;
}

.calc_cell--tight {
  width: 280px;
}

.calc_input {
  width: 75%;
  min-width: 80px;
  height: 36px;
  padding: 0 12px;
  text-align: right;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background-color: var(--color-input);
  color: var(--color-text);
  font-size: 14px;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.calc_input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.calc_input--active {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
  background-color: rgba(30, 41, 59, 1);
}

.calc_output {
  background-color: var(--color-output);
  color: #f8fafc;
}

.calc_output.calc_input--active {
  background-color: rgba(15, 23, 42, 1);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
}

/* Buttons */
.calc_button {
  width: 100%;
  height: 38px;
  border: 1px solid rgba(59, 130, 246, 0.5);
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-button), #1e40af);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.2);
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

[data-target="people-count"] {
  box-shadow:
    0 4px 8px rgba(56, 189, 248, 0.25),
    0 0 12px rgba(56, 189, 248, 0.15);
}

.calc_button-stack {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
}

.calc_button--mini {
  height: 30px;
  font-size: 12px;
  padding: 0;
  width: 100%;
  box-shadow:
    0 4px 8px rgba(56, 189, 248, 0.25),
    0 0 12px rgba(56, 189, 248, 0.15);
}

.calc_button--mini[data-delta]:not([data-delta^="-"]) {
  background: linear-gradient(135deg, #3e7fd6, #2563eb);
  border-color: rgba(37, 99, 235, 0.7);
  box-shadow:
    0 4px 8px rgba(62, 127, 214, 0.3),
    0 0 12px rgba(37, 99, 235, 0.2);
}

.calc_button--mini[data-delta]:not([data-delta^="-"]):hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  box-shadow:
    0 6px 12px rgba(62, 127, 214, 0.38),
    0 0 16px rgba(37, 99, 235, 0.26);
}

.calc_button--mini[data-delta^="-"] {
  background: linear-gradient(135deg, #e57373, #dc4a4a);
  border-color: rgba(220, 74, 74, 0.7);
  box-shadow:
    0 4px 8px rgba(220, 74, 74, 0.3),
    0 0 12px rgba(220, 74, 74, 0.2);
}

.calc_button--mini[data-delta^="-"]:hover {
  background: linear-gradient(135deg, #ef5353, #dc2626);
  box-shadow:
    0 6px 12px rgba(220, 74, 74, 0.34),
    0 0 16px rgba(220, 74, 74, 0.24);
}

.calc_button-spacer {
  height: 30px;
}

.calc_button:hover {
  background: linear-gradient(135deg, var(--color-button-hover), #1e3a8a);
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(37, 99, 235, 0.3);
}

[data-target="people-count"]:hover {
  box-shadow:
    0 6px 12px rgba(56, 189, 248, 0.35),
    0 0 16px rgba(56, 189, 248, 0.25);
}

.calc_button--mini:hover {
  box-shadow:
    0 6px 12px rgba(56, 189, 248, 0.35),
    0 0 16px rgba(56, 189, 248, 0.25);
  transform: translateY(-1px);
}

/* Action buttons row */
.calc_actions {
  padding-top: 12px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.calc_button--action {
  width: auto;
  padding: 0 18px;
  background: linear-gradient(135deg, var(--color-button), var(--color-accent));
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow:
    0 0 12px rgba(56, 189, 248, 0.3),
    0 4px 8px rgba(37, 99, 235, 0.2);
}

.calc_button--action:hover {
  box-shadow:
    0 0 18px rgba(56, 189, 248, 0.5),
    0 6px 12px rgba(37, 99, 235, 0.3);
}

.calc_button--action:last-child {
  background: linear-gradient(135deg, #0ea5e9, var(--color-accent-2));
  border-color: rgba(251, 191, 36, 0.6);
  box-shadow:
    0 0 12px rgba(251, 191, 36, 0.3),
    0 4px 8px rgba(251, 191, 36, 0.15);
}

.calc_button--action:last-child:hover {
  box-shadow:
    0 0 18px rgba(251, 191, 36, 0.5),
    0 6px 12px rgba(251, 191, 36, 0.25);
}

.calc_button--preset {
  background: linear-gradient(
    135deg,
    var(--color-preset-1),
    var(--color-preset-2)
  );
  border-color: rgba(236, 72, 153, 0.6);
  box-shadow:
    0 0 12px rgba(236, 72, 153, 0.3),
    0 4px 8px rgba(139, 92, 246, 0.2);
}

.calc_button--preset:hover {
  box-shadow:
    0 0 18px rgba(236, 72, 153, 0.5),
    0 6px 12px rgba(139, 92, 246, 0.3);
}

.calc_button--delete {
  background: linear-gradient(
    135deg,
    var(--color-delete-1),
    var(--color-delete-2)
  );
  border-color: rgba(239, 68, 68, 0.6);
  box-shadow:
    0 0 12px rgba(239, 68, 68, 0.3),
    0 4px 8px rgba(220, 38, 38, 0.2);
}

.calc_button--delete:hover {
  box-shadow:
    0 0 18px rgba(239, 68, 68, 0.5),
    0 6px 12px rgba(220, 38, 38, 0.3);
}

/* Breakdown chart */
.breakdown {
  max-width: 820px;
  margin: 24px auto 0;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--color-card-border);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.4);
}

.breakdown_title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
}

.breakdown_rows {
  display: grid;
  gap: 12px;
}

.breakdown_row {
  display: grid;
  grid-template-columns: 110px 1fr 130px;
  gap: 12px;
  align-items: center;
}

.breakdown_label {
  font-size: 12px;
  color: var(--color-text-sub);
  letter-spacing: 0.04em;
}

.breakdown_bar {
  height: 10px;
  background: var(--color-chart-track);
  border-radius: 999px;
  overflow: hidden;
}

.breakdown_fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  transition: width 0.25s ease;
}

.breakdown_fill--fuel {
  background: var(--color-chart-fuel);
}

.breakdown_fill--toll {
  background: var(--color-chart-toll);
}

.breakdown_fill--parking {
  background: var(--color-chart-parking);
}

.breakdown_fill--other {
  background: var(--color-chart-other);
}

.breakdown_value {
  text-align: right;
  font-size: 12px;
  color: var(--color-text-sub);
  white-space: nowrap;
}

.breakdown_percent {
  margin-left: 6px;
  color: var(--color-text);
  font-weight: 600;
}

/* History */
.history {
  max-width: 820px;
  margin: 24px auto 0;
  padding: 0;
  border-radius: 16px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--color-card-border);
  overflow: hidden;
}

.history_header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0;
}

.history_toggle {
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 6px;
  width: 100%;
}

.history_toggle:hover {
  background: rgba(56, 189, 248, 0.1);
}

.history_toggle-icon {
  color: var(--color-accent);
  font-size: 12px;
}

.history_clear {
  width: auto;
  padding: 0 10px;
  margin: 0 6px 6px auto;
  display: block;
  align-self: flex-end;
}

.history_content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 0 6px;
}

.history_content--open {
  max-height: 900px;
}

.history_summary {
  display: grid;
  gap: 12px;
  padding: 12px 0 16px;
  color: var(--color-text-sub);
  font-size: 12px;
}

.history_summary-item {
  display: grid;
  gap: 0;
  padding: 0;
  border-bottom: 1px solid rgba(56, 189, 248, 0.1);
}

.history_summary-item:last-child {
  border-bottom: none;
}

.history_summary-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  padding: 12px 16px;
  position: relative;
  background: linear-gradient(
    to right,
    rgba(96, 165, 250, 0.15) var(--bar-width, 100%),
    transparent var(--bar-width, 100%)
  );
  border-radius: 8px;
}

.history_summary-month {
  font-weight: 500;
  color: var(--color-text);
  min-width: 50px;
  position: relative;
  z-index: 1;
}

.history_summary-amount {
  font-weight: 600;
  color: #60a5fa;
  font-size: 14px;
  position: relative;
  z-index: 1;
}

.history_summary-bar {
  display: none;
}

.history_summary-fill {
  display: none;
}

.history_list {
  display: grid;
  gap: 10px;
  padding: 0 0 6px;
}

.history_empty {
  text-align: center;
  color: var(--color-text-sub);
  font-size: 13px;
  margin: 0;
  padding: 16px 0 12px;
}

.history_item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: linear-gradient(
    to right,
    rgba(96, 165, 250, 0.15) var(--bar-width, 100%),
    transparent var(--bar-width, 100%)
  );
  border: 1px solid var(--color-border);
  border-radius: 12px;
  position: relative;
}

.history_info {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.history_meta {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-bottom: 4px;
}

.history_detail {
  font-size: 12px;
  color: var(--color-text);
  line-height: 1.4;
  word-break: break-word;
}

.history_actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.history_actions .calc_button--mini {
  width: 60px;
}

/* プリセットセクション */
.presets {
  max-width: 820px;
  margin: 24px auto 0;
  border-radius: 16px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--color-card-border);
  overflow: hidden;
  box-sizing: border-box;
}

.presets_toggle {
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.2s ease;
}

.presets_toggle:hover {
  background: rgba(56, 189, 248, 0.1);
}

.presets_toggle-icon {
  color: var(--color-accent);
  font-size: 12px;
  transition: transform 0.3s ease;
}

.presets_content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.presets_content--open {
  max-height: 600px;
}

.presets_list {
  padding: 16px;
}

.presets_empty {
  text-align: center;
  color: var(--color-text-sub);
  font-size: 14px;
  margin: 0;
  padding: 20px;
}

.preset-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  margin-bottom: 10px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: all 0.2s ease;
  gap: 12px;
}

.preset-item:hover {
  background: rgba(15, 23, 42, 0.9);
  border-color: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
}

.preset-item:last-child {
  margin-bottom: 0;
}

.preset-item_info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.preset-item_name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-item_details {
  font-size: 12px;
  color: var(--color-text-sub);
  overflow: hidden;
  line-height: 1.4;
  word-break: break-all;
}

.preset-item_date {
  font-size: 11px;
  color: var(--color-text-sub);
  opacity: 0.7;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-item_actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.preset-item_actions .calc_button--mini {
  width: 60px;
}

/* モーダル */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal--open {
  display: flex;
}

.modal_overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal_content {
  position: relative;
  z-index: 1;
  max-width: 480px;
  width: 100%;
  padding: 28px;
  background: var(--color-card);
  border: 1px solid var(--color-card-border);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal_title {
  margin: 0 0 20px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-accent), #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal_body {
  margin-bottom: 24px;
}

.modal_label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-sub);
}

.modal_input {
  width: 100%;
  height: 44px;
  padding: 0 16px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background-color: var(--color-input);
  color: var(--color-text);
  font-size: 16px;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.modal_input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.modal_actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.modal_actions .calc_button {
  width: auto;
  padding: 0 24px;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(12px);
  padding: 10px 16px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.95);
  color: var(--color-text);
  font-size: 13px;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-card-border);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
  z-index: 1100;
  max-width: min(90vw, 420px);
  text-align: center;
}

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

/* Mobile tweaks */
@media (max-width: 768px) {
  body {
    padding: 20px 14px;
  }

  .calc {
    padding: 20px 16px 16px;
    border-radius: 18px;
  }

  .calc_title {
    font-size: 22px;
  }

  .calc_cell--tight {
    width: 260px;
  }

  .calc_input,
  .calc_button {
    height: 34px;
    font-size: 13px;
  }

  .calc_input {
    width: 90px;
  }

  .calc_cell {
    width: 150px;
  }

  .calc_button--mini {
    height: 28px;
    font-size: 9px;
    padding: 0 6px;
    box-shadow:
      0 3px 6px rgba(56, 189, 248, 0.2),
      0 0 8px rgba(56, 189, 248, 0.12);
    width: 100%;
  }

  .calc_button-spacer {
    height: 28px;
  }

  .calc_button--mini:hover {
    box-shadow:
      0 4px 8px rgba(56, 189, 248, 0.25),
      0 0 12px rgba(56, 189, 248, 0.18);
  }

  .calc_button-stack {
    gap: 3px;
  }

  .calc_label {
    font-size: 11px;
  }

  .calc_label--formula::after {
    display: none;
  }

  .calc_actions {
    flex-wrap: nowrap;
    gap: 6px;
    justify-content: center;
  }

  .calc_button--action {
    padding: 0 12px;
    font-size: 12px;
    width: 200px;
    box-shadow:
      0 0 8px rgba(56, 189, 248, 0.25),
      0 4px 8px rgba(37, 99, 235, 0.15);
  }

  .calc_button--action:hover {
    box-shadow:
      0 0 12px rgba(56, 189, 248, 0.4),
      0 6px 10px rgba(37, 99, 235, 0.25);
  }

  .breakdown {
    padding: 16px;
  }

  .breakdown_row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .breakdown_value {
    text-align: left;
  }

  .history {
    padding: 0;
  }

  .history_header {
    flex-direction: row;
    align-items: center;
    padding: 0;
  }

  .history_toggle {
    padding: 16px 20px;
  }

  .history_toggle:hover {
    background: rgba(56, 189, 248, 0.1);
  }

  .history_item {
    flex-direction: column;
    align-items: flex-start;
  }

  .history_actions {
    width: 100%;
    justify-content: flex-end;
  }

  .preset-item {
    padding: 10px 12px;
    gap: 8px;
  }

  .preset-item_name {
    font-size: 14px;
  }

  .preset-item_details {
    font-size: 11px;
    white-space: normal;
    overflow: visible;
    word-break: break-word;
  }

  .preset-item_date {
    font-size: 10px;
    margin-top: 2px;
  }

  .preset-item_actions .calc_button--mini {
    width: 50px;
    font-size: 10px;
    padding: 0 4px;
  }

  .presets_list {
    padding: 12px;
  }

  .modal_content {
    padding: 20px;
    max-width: calc(100vw - 40px);
  }

  .modal_title {
    font-size: 18px;
    margin-bottom: 16px;
  }

  .modal_input {
    height: 40px;
    font-size: 14px;
  }

  .modal_actions .calc_button {
    padding: 0 16px;
    font-size: 13px;
  }
}