/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  --color-bg:           #F6F8F6;
  --color-surface:      #FFFFFF;
  --color-border:       #E4E9E6;
  --color-primary:      #2D6A4F;
  --color-primary-dark: #245A40;
  --color-primary-light:#E8F4EE;
  --color-text:         #1A1E1B;
  --color-text-muted:   #6B7A72;
  --color-error:        #DC2626;
  --color-error-bg:     #FEF2F2;
  --color-success:      #16A34A;
  --color-success-bg:   #F0FDF4;
  --header-height:      60px;
  --sidebar-width:      240px;
  --radius:             10px;
  --radius-sm:          6px;
  --shadow-sm:          0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:          0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
  --font:               'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition:         0.15s ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   LOADING SCREEN
   ============================================================ */
.loading-screen {
  position: fixed; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 24px;
  background: var(--color-surface);
  z-index: 9999;
}

.loading-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   LAYOUT
   ============================================================ */
.app-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.app-header {
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  z-index: 100;
}

.header-logo {
  height: 30px;
  object-fit: contain;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.username-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.logout-btn {
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: background var(--transition), color var(--transition);
}
.logout-btn:hover { background: var(--color-bg); color: var(--color-text); }

.app-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 16px 10px;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}
.nav-item:hover { background: var(--color-bg); color: var(--color-text); }
.nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.nav-item svg { flex-shrink: 0; }

/* ============================================================
   CONTENT AREA
   ============================================================ */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
}

/* ============================================================
   PAGE COMPONENTS
   ============================================================ */
.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.page-description {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* ============================================================
   CARD
   ============================================================ */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}
.card-section:last-child { border-bottom: none; }

.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  max-width: 480px;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.12);
}

/* ============================================================
   INGREDIENT ROWS
   ============================================================ */
.ingredients-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.hint-text {
  font-size: 11.5px;
  color: var(--color-text-muted);
}

.ingredients-table-header {
  display: grid;
  grid-template-columns: 1fr 160px 36px;
  gap: 10px;
  padding: 0 4px 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.ingredients-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.ingredient-row {
  display: grid;
  grid-template-columns: 1fr 160px 36px;
  gap: 10px;
  align-items: center;
}

.weight-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
}

.weight-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.weight-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.12);
}

.weight-unit {
  font-size: 12px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.delete-row-btn {
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.delete-row-btn:hover { background: var(--color-error-bg); color: var(--color-error); }

/* Add row button */
.add-row-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: none;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.add-row-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) { background: #EAEDE9; }

.btn-outline {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover:not(:disabled) { background: var(--color-bg); }

/* Spinner inside btn */
.btn .spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* ============================================================
   RESULT SECTION
   ============================================================ */
.result-section {
  margin: 0 24px 20px;
  padding: 18px 20px;
  background: var(--color-success-bg);
  border: 1px solid #BBF7D0;
  border-radius: var(--radius);
}

.result-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-success);
  margin-bottom: 12px;
}

.pdf-url-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 12px;
  word-break: break-all;
}

.pdf-url {
  font-size: 12.5px;
  color: var(--color-primary);
  text-decoration: none;
}
.pdf-url:hover { text-decoration: underline; }

.result-actions {
  display: flex;
  gap: 8px;
}

/* ============================================================
   ERROR / MESSAGES
   ============================================================ */
.error-message {
  margin: 0 24px 16px;
  padding: 10px 16px;
  background: var(--color-error-bg);
  border: 1px solid #FECACA;
  border-radius: var(--radius-sm);
  color: var(--color-error);
  font-size: 13px;
}

.hidden { display: none; }

/* ============================================================
   TOM SELECT OVERRIDES
   ============================================================ */
.ts-wrapper.single .ts-control {
  border-radius: var(--radius-sm);
  border-color: var(--color-border);
  font-family: var(--font);
  font-size: 14px;
  padding: 8px 12px;
  min-height: 38px;
  display: flex;
  align-items: center;
  cursor: pointer;
  background: var(--color-surface);
  box-shadow: none;
}
.ts-wrapper.single.focus .ts-control {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.12);
}
.ts-dropdown {
  border-color: var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-family: var(--font);
  font-size: 13.5px;
}
.ts-dropdown .option { padding: 8px 12px; }
.ts-dropdown .option.active { background: var(--color-primary-light); color: var(--color-primary); }
.ts-dropdown .option:hover { background: var(--color-bg); }