/* ========================================
   MATERIAL DESIGN 3 - DESIGN TOKENS
   ======================================== */
:root {
  /* MD3 Primary Tonal Palette (Purple) */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;

  /* MD3 Secondary */
  --md-sys-color-secondary: #625B71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #E8DEF8;
  --md-sys-color-on-secondary-container: #1D192B;

  /* MD3 Tertiary */
  --md-sys-color-tertiary: #7D5260;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFD8E4;
  --md-sys-color-on-tertiary-container: #31111D;

  /* MD3 Error */
  --md-sys-color-error: #B3261E;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #F9DEDC;
  --md-sys-color-on-error-container: #410E0B;

  /* MD3 Surface */
  --md-sys-color-surface: #FFFBFE;
  --md-sys-color-on-surface: #1C1B1F;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-surface-container-lowest: #FFFFFF;
  --md-sys-color-surface-container-low: #F7F2FA;
  --md-sys-color-surface-container: #F3EDF7;
  --md-sys-color-surface-container-high: #ECE6F0;
  --md-sys-color-surface-container-highest: #E6E0E9;

  /* MD3 Outline */
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;

  /* MD3 Inverse */
  --md-sys-color-inverse-surface: #313033;
  --md-sys-color-inverse-on-surface: #F4EFF4;
  --md-sys-color-inverse-primary: #D0BCFF;

  /* MD3 Additional semantic colors */
  --md-sys-color-success: #386A20;
  --md-sys-color-on-success: #FFFFFF;
  --md-sys-color-success-container: #B8F397;
  --md-sys-color-on-success-container: #072100;
  --md-sys-color-warning: #7D5700;
  --md-sys-color-on-warning: #FFFFFF;
  --md-sys-color-warning-container: #FFDEA6;
  --md-sys-color-on-warning-container: #271900;

  /* MD3 Elevation (tonal) */
  --md-sys-elevation-0: none;
  --md-sys-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px 1px rgba(0,0,0,0.15);
  --md-sys-elevation-2: 0 1px 2px rgba(0,0,0,0.3), 0 2px 6px 2px rgba(0,0,0,0.15);
  --md-sys-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.3);
  --md-sys-elevation-4: 0 6px 10px 4px rgba(0,0,0,0.15), 0 2px 3px rgba(0,0,0,0.3);
  --md-sys-elevation-5: 0 8px 12px 6px rgba(0,0,0,0.15), 0 4px 4px rgba(0,0,0,0.3);

  /* MD3 Shape */
  --md-sys-shape-none: 0;
  --md-sys-shape-extra-small: 4px;
  --md-sys-shape-small: 8px;
  --md-sys-shape-medium: 12px;
  --md-sys-shape-large: 16px;
  --md-sys-shape-extra-large: 28px;
  --md-sys-shape-full: 9999px;

  /* MD3 Motion */
  --md-sys-motion-duration-short: 200ms;
  --md-sys-motion-duration-medium: 400ms;
  --md-sys-motion-duration-long: 600ms;
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
}

/* ========================================
   RESET Y BASE
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, .md3-body {
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  color: var(--md-sys-color-on-surface);
  background-color: var(--md-sys-color-surface);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ========================================
   MD3 TYPOGRAPHY
   ======================================== */
.md3-display-large { font-size: 3.5625rem; line-height: 4rem; font-weight: 400; letter-spacing: -0.015625em; }
.md3-display-medium { font-size: 2.8125rem; line-height: 3.25rem; font-weight: 400; }
.md3-display-small { font-size: 2.25rem; line-height: 2.75rem; font-weight: 400; }
.md3-headline-large { font-size: 2rem; line-height: 2.5rem; font-weight: 400; }
.md3-headline-medium { font-size: 1.75rem; line-height: 2.25rem; font-weight: 400; }
.md3-headline-small { font-size: 1.5rem; line-height: 2rem; font-weight: 400; }
.md3-title-large { font-size: 1.375rem; line-height: 1.75rem; font-weight: 400; }
.md3-title-medium { font-size: 1rem; line-height: 1.5rem; font-weight: 500; letter-spacing: 0.009375em; }
.md3-title-small { font-size: 0.875rem; line-height: 1.25rem; font-weight: 500; letter-spacing: 0.00625em; }
.md3-body-large { font-size: 1rem; line-height: 1.5rem; font-weight: 400; letter-spacing: 0.03125em; }
.md3-body-medium { font-size: 0.875rem; line-height: 1.25rem; font-weight: 400; letter-spacing: 0.015625em; }
.md3-body-small { font-size: 0.75rem; line-height: 1rem; font-weight: 400; letter-spacing: 0.025em; }
.md3-label-large { font-size: 0.875rem; line-height: 1.25rem; font-weight: 500; letter-spacing: 0.00625em; }
.md3-label-medium { font-size: 0.75rem; line-height: 1rem; font-weight: 500; letter-spacing: 0.03125em; }
.md3-label-small { font-size: 0.6875rem; line-height: 1rem; font-weight: 500; letter-spacing: 0.03125em; }

/* Color text utilities */
.md3-on-surface { color: var(--md-sys-color-on-surface); }
.md3-on-surface-variant { color: var(--md-sys-color-on-surface-variant); }
.md3-primary-text { color: var(--md-sys-color-primary); }
.md3-error-text { color: var(--md-sys-color-error); }

/* ========================================
   MD3 LAYOUT
   ======================================== */
.md3-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.md3-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  gap: 16px;
}

/* Grid system */
.md3-grid { display: grid; gap: 16px; }
.md3-grid-2 { grid-template-columns: repeat(2, 1fr); }
.md3-grid-3 { grid-template-columns: repeat(3, 1fr); }
.md3-grid-4 { grid-template-columns: repeat(4, 1fr); }
.md3-grid-1-2 { grid-template-columns: 1fr 2fr; }
.md3-grid-2-1 { grid-template-columns: 2fr 1fr; }

/* Flex utilities */
.md3-flex { display: flex; }
.md3-flex-col { display: flex; flex-direction: column; }
.md3-flex-wrap { flex-wrap: wrap; }
.md3-items-center { align-items: center; }
.md3-items-start { align-items: flex-start; }
.md3-items-end { align-items: flex-end; }
.md3-justify-between { justify-content: space-between; }
.md3-justify-center { justify-content: center; }
.md3-justify-end { justify-content: flex-end; }
.md3-gap-sm { gap: 8px; }
.md3-gap-md { gap: 16px; }
.md3-gap-lg { gap: 24px; }
.md3-flex-1 { flex: 1; }
.md3-w-full { width: 100%; }

/* Spacing */
.md3-mb-sm { margin-bottom: 8px; }
.md3-mb-md { margin-bottom: 16px; }
.md3-mb-lg { margin-bottom: 24px; }
.md3-mb-xl { margin-bottom: 32px; }
.md3-mt-sm { margin-top: 8px; }
.md3-mt-md { margin-top: 16px; }
.md3-mt-lg { margin-top: 24px; }
.md3-p-md { padding: 16px; }
.md3-p-lg { padding: 24px; }

/* ========================================
   MD3 TOP APP BAR
   ======================================== */
.md3-top-app-bar {
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--md-sys-elevation-2);
}

.md3-top-app-bar-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.md3-top-app-bar-title {
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  gap: 12px;
}

.md3-top-app-bar-subtitle {
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
  letter-spacing: 0.03125em;
}

/* ========================================
   MD3 NAVIGATION BAR
   ======================================== */
.md3-nav-bar {
  display: flex;
  gap: 4px;
}

.md3-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 20px;
  border-radius: var(--md-sys-shape-full);
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03125em;
  color: var(--md-sys-color-on-surface-variant);
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  position: relative;
}

.md3-nav-item:hover {
  background-color: var(--md-sys-color-surface-container-high);
}

.md3-nav-item.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 700;
}

.md3-nav-item .material-symbols-outlined {
  font-size: 24px;
}

/* ========================================
   MD3 BUTTONS
   ======================================== */
/* Filled Button */
.md3-btn-filled {
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  text-decoration: none;
  white-space: nowrap;
}

.md3-btn-filled:hover:not(:disabled) {
  box-shadow: var(--md-sys-elevation-1);
  opacity: 0.92;
}

.md3-btn-filled:active:not(:disabled) {
  box-shadow: none;
  opacity: 0.88;
}

.md3-btn-filled:disabled {
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
  cursor: not-allowed;
}

/* Outlined Button */
.md3-btn-outlined {
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-sys-shape-full);
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  text-decoration: none;
  white-space: nowrap;
}

.md3-btn-outlined:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

.md3-btn-outlined:disabled {
  border-color: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
  cursor: not-allowed;
}

/* Tonal Button */
.md3-btn-tonal {
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  text-decoration: none;
  white-space: nowrap;
}

.md3-btn-tonal:hover:not(:disabled) {
  box-shadow: var(--md-sys-elevation-1);
  opacity: 0.92;
}

/* Text Button */
.md3-btn-text {
  height: 40px;
  padding: 0 12px;
  border-radius: var(--md-sys-shape-full);
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.md3-btn-text:hover:not(:disabled) {
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

/* Danger Button (Error tonal) */
.md3-btn-danger {
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.md3-btn-danger:hover:not(:disabled) {
  box-shadow: var(--md-sys-elevation-1);
  opacity: 0.92;
}

/* Icon Button */
.md3-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-full);
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 1.125rem;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.md3-icon-btn:hover {
  background-color: var(--md-sys-color-surface-container-high);
}

.md3-icon-btn.delete:hover {
  background-color: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

/* FAB */
.md3-fab {
  height: 56px;
  min-width: 56px;
  padding: 0 16px;
  border-radius: var(--md-sys-shape-large);
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: var(--md-sys-elevation-3);
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.md3-fab:hover {
  box-shadow: var(--md-sys-elevation-4);
}

/* Backward compat aliases */
.btn-primary {
  height: 40px; padding: 0 24px; border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-primary); color: var(--md-sys-color-on-primary);
  border: none; font-family: 'Roboto', sans-serif; font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.00625em; cursor: pointer; display: inline-flex; align-items: center;
  justify-content: center; gap: 8px; transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
.btn-primary:hover:not(:disabled) { box-shadow: var(--md-sys-elevation-1); opacity: 0.92; }
.btn-secondary {
  height: 40px; padding: 0 24px; border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
  border: none; font-family: 'Roboto', sans-serif; font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.00625em; cursor: pointer; display: inline-flex; align-items: center;
  justify-content: center; gap: 8px; transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
.btn-secondary:hover:not(:disabled) { box-shadow: var(--md-sys-elevation-1); opacity: 0.92; }
.btn-outline {
  height: 40px; padding: 0 24px; border-radius: var(--md-sys-shape-full);
  background-color: transparent; color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline); font-family: 'Roboto', sans-serif;
  font-size: 0.875rem; font-weight: 500; letter-spacing: 0.00625em; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
.btn-outline:hover:not(:disabled) { background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent); }
.btn-danger {
  height: 40px; padding: 0 24px; border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-error); color: var(--md-sys-color-on-error);
  border: none; font-family: 'Roboto', sans-serif; font-size: 0.875rem; font-weight: 500;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
.btn-danger:hover:not(:disabled) { box-shadow: var(--md-sys-elevation-1); opacity: 0.92; }
.btn-success {
  height: 40px; padding: 0 24px; border-radius: var(--md-sys-shape-full);
  background-color: var(--md-sys-color-success); color: var(--md-sys-color-on-success);
  border: none; font-family: 'Roboto', sans-serif; font-size: 0.875rem; font-weight: 500;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
.btn-success:hover:not(:disabled) { box-shadow: var(--md-sys-elevation-1); opacity: 0.92; }
.btn-sm { height: 36px; padding: 0 16px; font-size: 0.8125rem; }
.btn-lg { height: 48px; padding: 0 32px; font-size: 1rem; }
.btn:disabled, .btn-primary:disabled, .btn-secondary:disabled,
.btn-outline:disabled, .btn-danger:disabled {
  opacity: 0.38; cursor: not-allowed;
}

/* ========================================
   MD3 CARDS
   ======================================== */
/* Elevated Card */
.card, .md3-card-elevated {
  background-color: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  box-shadow: var(--md-sys-elevation-1);
  padding: 24px;
  transition: box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.card:hover, .md3-card-elevated:hover {
  box-shadow: var(--md-sys-elevation-2);
}

/* Filled Card */
.md3-card-filled {
  background-color: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-sys-shape-medium);
  padding: 24px;
}

/* Outlined Card */
.md3-card-outlined {
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  padding: 24px;
}

.card-title {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.009375em;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ========================================
   MD3 TEXT FIELDS (Outlined)
   ======================================== */
.form-group {
  margin-bottom: 16px;
  position: relative;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.03125em;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 56px;
  padding: 16px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-extra-small);
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  line-height: 1.5rem;
  letter-spacing: 0.03125em;
  color: var(--md-sys-color-on-surface);
  background-color: transparent;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  outline: none;
}

.form-textarea {
  height: auto;
  min-height: 80px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--md-sys-color-primary);
  border-width: 2px;
  padding: 15px; /* compensate for 2px border */
}

.form-input:disabled,
.form-select:disabled {
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 4%, transparent);
  border-color: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
  cursor: not-allowed;
}

.form-input.input-error,
.form-select.input-error {
  border-color: var(--md-sys-color-error);
}

.form-input.input-error:focus,
.form-select.input-error:focus {
  border-color: var(--md-sys-color-error);
}

.form-error-message {
  color: var(--md-sys-color-error);
  font-size: 0.75rem;
  letter-spacing: 0.025em;
  margin-top: 4px;
}

/* ========================================
   MD3 NAVIGATION - NAV LINKS (compat)
   ======================================== */
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--md-sys-shape-full);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.nav-link:hover {
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
}

.nav-link.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font-weight: 700;
}

/* ========================================
   MD3 DIALOG (Modal)
   ======================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.32);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: md3-fade-in var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.modal-content {
  background: var(--md-sys-color-surface-container-high);
  border-radius: var(--md-sys-shape-extra-large);
  box-shadow: var(--md-sys-elevation-3);
  max-width: 560px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: md3-slide-up var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.modal-content.modal-lg {
  max-width: 800px;
}

.modal-header {
  padding: 24px 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--md-sys-color-on-surface);
}

.modal-close {
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  transition: background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.modal-close:hover {
  background-color: var(--md-sys-color-surface-container-highest);
}

.modal-body {
  padding: 16px 24px;
}

.modal-footer {
  padding: 16px 24px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ========================================
   MD3 SNACKBAR (Toast)
   ======================================== */
.md3-snackbar-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.toast {
  background-color: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  border-radius: var(--md-sys-shape-extra-small);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 344px;
  max-width: 560px;
  box-shadow: var(--md-sys-elevation-3);
  animation: md3-slide-up-snackbar var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
  border-left: none;
}

.toast.toast-success { border-left: none; }
.toast.toast-error { border-left: none; }
.toast.toast-warning { border-left: none; }
.toast.toast-info { border-left: none; }

.toast-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: 0.015625em;
  color: var(--md-sys-color-inverse-on-surface);
}

.toast-close {
  background: none;
  border: none;
  color: var(--md-sys-color-inverse-primary);
  font-size: 1.125rem;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--md-sys-shape-full);
  flex-shrink: 0;
  transition: opacity var(--md-sys-motion-duration-short);
}

.toast-close:hover {
  opacity: 0.8;
}

.toast-exit {
  animation: md3-slide-down-snackbar var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard) forwards;
}

/* ========================================
   MD3 CHIPS (Badges)
   ======================================== */
.badge {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  border-radius: var(--md-sys-shape-small);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.00625em;
}

.badge-borrador {
  background-color: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-on-surface);
}

.badge-enviado {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.badge-aceptado {
  background-color: var(--md-sys-color-success-container);
  color: var(--md-sys-color-on-success-container);
}

.badge-rechazado {
  background-color: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

/* ========================================
   MD3 SERVICIO CARDS
   ======================================== */
.servicio-card {
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  padding: 16px;
  margin-bottom: 12px;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  background-color: var(--md-sys-color-surface);
}

.servicio-card:hover {
  background-color: var(--md-sys-color-surface-container-low);
}

.servicio-card.selected {
  border-color: var(--md-sys-color-primary);
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 5%, var(--md-sys-color-surface));
}

.servicio-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.servicio-emoji {
  font-size: 1.75rem;
  line-height: 1;
}

.servicio-nombre {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.servicio-descripcion {
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 2px;
}

.servicio-precio {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-sys-color-primary);
  white-space: nowrap;
}

.servicio-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--md-sys-color-primary);
}

.subservicios-container {
  padding-left: 3rem;
  margin-top: 12px;
  display: none;
}

.servicio-card.expanded .subservicios-container {
  display: block;
}

.subservicio-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--md-sys-color-surface-container-high);
}

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

.subservicio-item label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface);
}

.subservicio-item .subservicio-precio {
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.875rem;
}

/* ========================================
   MD3 PREVIEW BOX
   ======================================== */
.preview-box {
  border: 1px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  padding: 16px;
  background-color: var(--md-sys-color-surface-container-lowest);
  min-height: 400px;
}

.preview-box.has-content {
  border-style: solid;
  border-color: var(--md-sys-color-outline-variant);
}

.preview-header {
  text-align: center;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.preview-logo {
  max-width: 120px;
  height: auto;
  margin: 0 auto 12px;
  display: block;
}

.preview-cliente-nombre {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.preview-presupuesto-numero {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-top: 4px;
}

.preview-fecha {
  font-size: 0.75rem;
  color: var(--md-sys-color-outline);
  margin-top: 4px;
}

.preview-items {
  margin-bottom: 16px;
}

.preview-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--md-sys-color-surface-container-high);
}

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

.preview-item-nombre {
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface);
}

.preview-item-tipo {
  font-size: 0.6875rem;
  color: var(--md-sys-color-outline);
  font-style: italic;
}

.preview-item-precio {
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  font-size: 0.875rem;
}

.preview-totales {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding-top: 16px;
}

.preview-total-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
}

.preview-total-row.descuento {
  color: var(--md-sys-color-error);
}

.preview-total-row.total-final {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--md-sys-color-primary);
  margin-top: 12px;
  padding-top: 12px;
  border-top: 2px solid var(--md-sys-color-primary);
}

/* ========================================
   MD3 LOGO UPLOAD
   ======================================== */
.logo-preview {
  width: 150px;
  height: 150px;
  border: 1px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--md-sys-color-surface-container-lowest);
}

.logo-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.logo-upload-area {
  border: 1px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  background-color: var(--md-sys-color-surface-container-lowest);
}

.logo-upload-area:hover {
  border-color: var(--md-sys-color-primary);
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 5%, transparent);
}

.logo-upload-area.dragover {
  border-color: var(--md-sys-color-primary);
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

/* ========================================
   MD3 FILTERS
   ======================================== */
.filtros-container {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  padding: 16px;
  margin-bottom: 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.filtro-item {
  flex: 1;
  min-width: 200px;
}

.filtro-item label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03125em;
}

/* ========================================
   MD3 DATA TABLE
   ======================================== */
.table-container {
  overflow-x: auto;
  border-radius: var(--md-sys-shape-medium);
  border: 1px solid var(--md-sys-color-outline-variant);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead {
  background-color: var(--md-sys-color-surface-container);
}

.data-table th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.75rem;
  letter-spacing: 0.03125em;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
}

.data-table tr:hover {
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 4%, transparent);
}

.data-table .actions-cell {
  display: flex;
  gap: 4px;
  align-items: center;
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: var(--md-sys-shape-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  font-size: 1rem;
  line-height: 1;
  color: var(--md-sys-color-on-surface-variant);
}

.icon-btn:hover {
  background-color: var(--md-sys-color-surface-container-high);
}

.icon-btn.delete:hover {
  background-color: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

/* ========================================
   MD3 EMPTY STATE
   ======================================== */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--md-sys-color-on-surface-variant);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.empty-state-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.empty-state-message {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  max-width: 400px;
  margin: 0 auto;
}

/* ========================================
   MD3 STAT CARDS
   ======================================== */
.stat-card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  padding: 20px;
  box-shadow: var(--md-sys-elevation-1);
  border-left: 4px solid var(--md-sys-color-primary);
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.stat-card:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.stat-card .stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.03125em;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
}

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--md-sys-color-on-surface);
  margin-top: 4px;
}

.stat-card.success { border-left-color: var(--md-sys-color-success); }
.stat-card.warning { border-left-color: var(--md-sys-color-warning); }
.stat-card.danger { border-left-color: var(--md-sys-color-error); }

/* ========================================
   MD3 SERVICIO LIST ITEM
   ======================================== */
.servicio-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-medium);
  margin-bottom: 8px;
  background: var(--md-sys-color-surface);
  transition: all var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

.servicio-list-item:hover {
  background-color: var(--md-sys-color-surface-container-low);
}

.servicio-list-item .info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.servicio-list-item .emoji {
  font-size: 1.5rem;
}

.servicio-list-item .details h4 {
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  font-size: 0.9375rem;
}

.servicio-list-item .details p {
  font-size: 0.8125rem;
  color: var(--md-sys-color-on-surface-variant);
}

.servicio-list-item .meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.servicio-list-item .precio {
  font-weight: 500;
  color: var(--md-sys-color-primary);
  font-size: 1rem;
}

.subservicio-list {
  padding-left: 2.5rem;
  margin-top: 8px;
}

.subservicio-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-left: 3px solid var(--md-sys-color-outline-variant);
  margin-bottom: 4px;
  background: var(--md-sys-color-surface-container-lowest);
  border-radius: 0 var(--md-sys-shape-extra-small) var(--md-sys-shape-extra-small) 0;
  font-size: 0.875rem;
}

/* ========================================
   MD3 CONFIRM DIALOG
   ======================================== */
.confirm-icon {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 12px;
}

.confirm-message {
  text-align: center;
  font-size: 1rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  line-height: 1.5rem;
}

/* ========================================
   MD3 CIRCULAR PROGRESS
   ======================================== */
.md3-circular-progress,
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--md-sys-color-surface-container-highest);
  border-top-color: var(--md-sys-color-primary);
  border-radius: 50%;
  animation: md3-spin 1s linear infinite;
  margin: 0 auto;
}

/* ========================================
   MD3 ANIMATIONS
   ======================================== */
@keyframes md3-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes md3-slide-up {
  from {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes md3-slide-up-snackbar {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes md3-slide-down-snackbar {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(20px);
  }
}

@keyframes md3-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Legacy animation aliases */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes slideOutRight {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

.fade-in {
  animation: md3-fade-in var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

/* ========================================
   UTILITIES
   ======================================== */
.hidden { display: none !important; }
.text-ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }
.text-center { text-align: center; }
.w-full { width: 100%; }
.font-semibold { font-weight: 500; }
.font-bold { font-weight: 700; }

/* Tailwind compat utilities used in JS */
.container { max-width: 1200px; margin: 0 auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }
.py-8 { padding-top: 32px; padding-bottom: 32px; }
.py-20 { padding-top: 80px; padding-bottom: 80px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.ml-2 { margin-left: 8px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-6 { margin-top: 24px; }
.p-2 { padding: 8px; }
.flex { display: flex; }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.inline-flex { display: inline-flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.space-y-2 > * + * { margin-top: 8px; }
.space-y-3 > * + * { margin-top: 12px; }
.sticky { position: sticky; }
.top-0 { top: 0; }
.top-4 { top: 16px; }
.top-24 { top: 96px; }
.right-4 { right: 16px; }
.z-50 { z-index: 50; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-right { text-align: right; }
.leading-tight { line-height: 1.25; }
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.025em; }
.text-gray-400 { color: var(--md-sys-color-outline); }
.text-gray-500 { color: var(--md-sys-color-on-surface-variant); }
.text-gray-600 { color: var(--md-sys-color-on-surface-variant); }
.text-gray-700 { color: var(--md-sys-color-on-surface); }
.text-gray-800 { color: var(--md-sys-color-on-surface); }
.bg-gray-50 { background-color: var(--md-sys-color-surface-container-lowest); }
.bg-gray-100 { background-color: var(--md-sys-color-surface-container); }
.bg-white { background-color: var(--md-sys-color-surface); }
.bg-blue-50 { background-color: var(--md-sys-color-primary-container); }
.border { border: 1px solid var(--md-sys-color-outline-variant); }
.border-transparent { border-color: transparent; }
.border-blue-500 { border-color: var(--md-sys-color-primary); }
.rounded { border-radius: var(--md-sys-shape-small); }
.shadow-md { box-shadow: var(--md-sys-elevation-2); }
.overflow-hidden { overflow: hidden; }
.min-h-screen { min-height: 100vh; }

.hover\:bg-gray-100:hover { background-color: var(--md-sys-color-surface-container); }

/* Responsive grid */
@media (min-width: 768px) {
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:col-span-1 { grid-column: span 1; }
  .lg\:col-span-2 { grid-column: span 2; }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .card {
    padding: 16px;
  }

  .filtros-container {
    flex-direction: column;
  }

  .filtro-item {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .md3-main {
    padding: 16px;
  }

  .modal-content {
    width: 95%;
    max-height: 95vh;
    border-radius: var(--md-sys-shape-large);
  }

  .servicio-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .toast {
    min-width: auto;
    width: calc(100vw - 48px);
  }

  .servicio-list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .servicio-list-item .meta {
    width: 100%;
    justify-content: space-between;
  }

  .data-table {
    font-size: 0.75rem;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }

  .md3-nav-bar {
    flex-wrap: wrap;
  }

  .md3-top-app-bar-content {
    flex-direction: column;
    gap: 12px;
  }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
  body {
    background: white;
  }

  .no-print {
    display: none !important;
  }

  .card {
    box-shadow: none;
    break-inside: avoid;
  }

  .toast,
  .modal-backdrop,
  #toast-container {
    display: none !important;
  }
}