:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #273549;
  --border: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --danger: #ef4444;
  --success: #10b981;
  --radius: 10px;
  --shadow: 0 4px 16px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  min-height: 100dvh;
}

.hidden { display: none !important; }

.screen { min-height: 100vh; min-height: 100dvh; }

.muted { color: var(--text-muted); }
.center { text-align: center; }
.error { color: var(--danger); }
.req { color: var(--danger); }

/* LOGIN */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow);
}
.login-card h1 {
  margin: 0 0 4px;
  font-size: 24px;
}
.login-card p {
  margin: 0 0 20px;
  font-size: 14px;
}
.login-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* HEADER */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.app-header h1 {
  margin: 0;
  font-size: 20px;
  flex: 1;
  min-width: 120px;
}
.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.header-actions input[type="search"] {
  width: 200px;
}

/* INPUTS */
input, select, textarea, button {
  font: inherit;
  color: inherit;
}
input[type="text"],
input[type="url"],
input[type="password"],
input[type="search"],
select,
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
}
textarea {
  resize: vertical;
  min-height: 60px;
  font-family: inherit;
}

/* BUTTONS */
button {
  cursor: pointer;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  transition: background 0.15s, border-color 0.15s;
}
button:hover { background: var(--surface); }
button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
button.primary:hover { background: var(--primary-hover); }
button.ghost {
  background: transparent;
}
button.danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
button.danger:hover { background: var(--danger); color: white; }

/* PROJECT LIST */
.project-list {
  padding: 16px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  max-width: 1200px;
  margin: 0 auto;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: transform 0.1s, border-color 0.15s;
}
.project-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}
.project-card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  word-break: break-word;
}
.project-card .type-tag {
  display: inline-block;
  font-size: 11px;
  background: var(--surface-2);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.project-card .preview {
  font-size: 13px;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* MODAL */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 16px;
  z-index: 100;
  overflow-y: auto;
}
.modal-content {
  background: var(--surface);
  border-radius: var(--radius);
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--surface);
  border-radius: var(--radius) var(--radius) 0 0;
  z-index: 5;
}
.modal-header h2 { margin: 0; font-size: 18px; }

.project-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
}
.project-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.label-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.custom-fields {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin: 0;
}
.custom-fields legend {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0 6px;
}
.custom-field-row {
  display: grid;
  grid-template-columns: 1fr 2fr auto;
  gap: 8px;
  margin-bottom: 8px;
  align-items: start;
}
.custom-field-row button { padding: 8px 12px; }

.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
  padding-top: 16px;
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow);
  z-index: 200;
}
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.success { border-color: var(--success); color: var(--success); }

/* MOBILE */
@media (max-width: 600px) {
  .app-header {
    padding: 12px;
  }
  .app-header h1 { font-size: 18px; flex-basis: 100%; }
  .header-actions { width: 100%; }
  .header-actions input[type="search"] { flex: 1; width: auto; }
  .project-list { grid-template-columns: 1fr; padding: 12px; }
  .modal { padding: 0; }
  .modal-content { min-height: 100vh; border-radius: 0; max-width: 100%; }
  .custom-field-row { grid-template-columns: 1fr; }
}