:root {
  --color-primary: #2c5f7c;
  --color-primary-dark: #1e4557;
  --color-accent: #e8945a;
  --color-bg: #f4f6f8;
  --color-card: #ffffff;
  --color-border: #dfe4e8;
  --color-text: #2b2f33;
  --color-muted: #6b7580;
  --color-danger: #c0392b;
  --color-success: #2e8b57;
  --color-warn: #d9a441;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-header {
  background: var(--color-primary-dark);
  color: #fff;
}
.app-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.app-logo { color: #fff; font-weight: 700; font-size: 18px; }
.app-nav { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.app-nav a { color: #d9e6ee; }
.app-nav__user { color: #cbd8e0; }

.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.app-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 60px;
}
.app-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 20px;
  color: var(--color-muted);
  font-size: 13px;
}

h1 { font-size: 24px; margin: 4px 0 12px; }
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 16px; margin: 0 0 8px; }

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 32px 0 12px;
}

.breadcrumb { font-size: 13px; color: var(--color-muted); margin-bottom: 4px; }
.text-muted { color: var(--color-muted); font-size: 14px; }

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.is-hidden { display: none !important; }

.btn {
  display: inline-block;
  border: none;
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
}
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; }
.btn-secondary { background: #eef1f3; color: var(--color-text); }
.btn-secondary:hover { background: #e2e6e9; text-decoration: none; }
.btn-danger { background: #fbeae8; color: var(--color-danger); }
.btn-danger:hover { background: #f6d6d1; }

.form { display: flex; flex-direction: column; gap: 16px; max-width: 640px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
.form input[type="text"],
.form input[type="date"],
.form input[type="password"],
.form textarea,
.form select {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
}
.required { color: var(--color-danger); }
.checkbox-line { flex-direction: row !important; align-items: center; gap: 8px !important; }

.alert { padding: 10px 14px; border-radius: var(--radius); font-size: 14px; }
.alert-error { background: #fbeae8; color: var(--color-danger); }

.auth-box {
  max-width: 380px;
  margin: 60px auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.project-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  color: var(--color-text);
  display: block;
}
.project-card:hover { border-color: var(--color-primary); text-decoration: none; }
.project-card__head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.project-card__client { color: var(--color-muted); font-size: 13px; margin: 4px 0 12px; }

.badge {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #e6eef2;
  color: var(--color-primary-dark);
  white-space: nowrap;
}
.badge-active { background: #e2f3ea; color: var(--color-success); }
.badge-on_hold { background: #fbf1de; color: var(--color-warn); }
.badge-completed { background: #eaeaea; color: var(--color-muted); }

.progress {
  height: 8px;
  background: #e9edf0;
  border-radius: 999px;
  overflow: hidden;
  margin-top: 10px;
}
.progress--lg { height: 14px; }
.progress__bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  transition: width 0.3s ease;
}
.progress__label { font-size: 13px; color: var(--color-muted); margin-top: 6px; }

.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  flex-wrap: wrap;
}
.task-row--not_started { border-left-color: var(--color-muted); }
.task-row--in_progress { border-left-color: var(--color-warn); }
.task-row--done { border-left-color: var(--color-success); opacity: 0.75; }
.task-row__main { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.task-row__title { font-weight: 600; font-size: 15px; }
.tag {
  font-size: 12px;
  background: #eef1f3;
  color: var(--color-muted);
  padding: 2px 8px;
  border-radius: 999px;
}
.tag-due { background: #fbf1de; color: var(--color-warn); }

.status-select {
  padding: 6px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 600;
}
.status-select--not_started { color: var(--color-muted); }
.status-select--in_progress { color: var(--color-warn); }
.status-select--done { color: var(--color-success); }

.event-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.event-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: block;
  color: var(--color-text);
}
.event-card:hover { border-color: var(--color-primary); text-decoration: none; }

.kv-table { width: 100%; border-collapse: collapse; }
.kv-table th, .kv-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.kv-table th { width: 180px; color: var(--color-muted); font-weight: 600; }

.field-label-title { font-size: 13px; font-weight: 600; color: var(--color-muted); margin: 4px 0 8px; }
.upload-fields-wrap, .upload-field-row, .event-field-row { display: flex; flex-direction: column; gap: 8px; }
.upload-field-row, .event-field-row {
  flex-direction: row;
  align-items: center;
}
.upload-field-row input, .event-field-row input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
}

.upload-field-block { margin-bottom: 24px; }
.upload-field-block:last-child { margin-bottom: 0; }

.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  color: var(--color-muted);
  background: #fafbfc;
}
.dropzone p { margin: 0 0 12px; }

.upload-progress-list { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.upload-progress-row { font-size: 13px; }
.upload-progress-row__name { margin-bottom: 4px; font-weight: 600; }
.upload-progress-row__status { color: var(--color-muted); margin-top: 4px; }
.upload-progress-row.is-error .upload-progress-row__status { color: var(--color-danger); }

.uploaded-files { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.uploaded-file {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  padding: 8px 10px;
  background: #f6f8f9;
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.empty { color: var(--color-muted); font-size: 14px; padding: 20px 0; }

@media (max-width: 640px) {
  .task-row { flex-direction: column; align-items: flex-start; }
  .kv-table th { width: 110px; }
}