/* Material Design 3 (Material You/Expressive) - Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Core Colors (Inspired by Material You - customize as needed) */
  --md-sys-primary: #6750A4; /* Purple */
  --md-sys-on-primary: #FFFFFF;
  --md-sys-primary-container: #EADDFF;
  --md-sys-on-primary-container: #21005D;

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

  --md-sys-tertiary: #7D5260; /* Pink/Rose */
  --md-sys-on-tertiary: #FFFFFF;
  --md-sys-tertiary-container: #FFD8E4;
  --md-sys-on-tertiary-container: #31111D;

  --md-sys-error: #B3261E;
  --md-sys-on-error: #FFFFFF;
  --md-sys-error-container: #F9DEDC;
  --md-sys-on-error-container: #410E0B;

  /* Surface Colors */
  --md-sys-background: #FFFBFE;
  --md-sys-on-background: #1C1B1F;
  --md-sys-surface: #FFFBFE; /* Often same as background */
  --md-sys-on-surface: #1C1B1F;
  --md-sys-surface-variant: #E7E0EC;
  --md-sys-on-surface-variant: #49454F;
  --md-sys-outline: #79747E;
  --md-sys-surface-container-highest: #E6E0E9;
  --md-sys-surface-container-high: #ECE6F0;
  --md-sys-surface-container: #F3EDF7;
  --md-sys-surface-container-low: #F7F2FA;
  --md-sys-surface-container-lowest: #FFFFFF;

  /* Elevation (Shadows) - More nuanced than simple box-shadow */
  --md-sys-elevation-level-0: none;
  --md-sys-elevation-level-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-level-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
  --md-sys-elevation-level-3: 0px 1px 3px 0px rgba(0, 0, 0, 0.3), 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level-4: 0px 2px 3px 0px rgba(0, 0, 0, 0.3), 0px 6px 10px 4px rgba(0, 0, 0, 0.15);
  --md-sys-elevation-level-5: 0px 4px 4px 0px rgba(0, 0, 0, 0.3), 0px 8px 12px 6px rgba(0, 0, 0, 0.15);

  /* Typography */
  --md-sys-font-family-brand: 'Plus Jakarta Sans', sans-serif;
  --md-sys-font-family-plain: 'Inter', sans-serif;
  
  /* Shape & Corner Radius */
  --md-sys-shape-corner-none: 0px;
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small: 8px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full: 9999px; /* For pills, etc. */

  /* Spacing */
  --md-sys-spacing-1: 0.25rem; /* 4px */
  --md-sys-spacing-2: 0.5rem;  /* 8px */
  --md-sys-spacing-3: 1rem;    /* 16px */
  --md-sys-spacing-4: 1.5rem;  /* 24px */
  --md-sys-spacing-5: 2rem;    /* 32px */
  --md-sys-spacing-6: 2.5rem;  /* 40px */
  --md-sys-spacing-7: 3rem;    /* 48px */

  /* Transitions */
  --md-sys-motion-easing-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
  --md-sys-motion-duration-short: 150ms;
  --md-sys-motion-duration-medium: 250ms;
  --md-sys-motion-duration-long: 350ms;
}

/* Responsive root font size */
html {
  font-size: clamp(0.94rem, 0.86rem + 0.3vw, 1rem);
}

/* Dark theme overrides */
:root[data-theme='dark'] {
  --md-sys-primary: #d0bcff;
  --md-sys-on-primary: #381e72;
  --md-sys-primary-container: #4f378b;
  --md-sys-on-primary-container: #eaddff;
  --md-sys-surface: #1d1b20;
  --md-sys-surface-container: #211f26;
  --md-sys-surface-container-high: #2b2930;
  --md-sys-surface-container-highest: #36343b;
  --md-sys-on-surface: #e6e1e5;
  --md-sys-on-surface-variant: #c8c4c8;
  --md-sys-secondary: #ccc2dc;
  --md-sys-on-secondary: #332d41;
  --md-sys-secondary-container: #4a4458;
  --md-sys-on-secondary-container: #e8def8;
  --md-sys-tertiary: #efb8c8;
  --md-sys-on-tertiary: #492532;
  --md-sys-tertiary-container: #633b48;
  --md-sys-on-tertiary-container: #ffd8e4;
  --md-sys-error: #f2b8b5;
  --md-sys-error-container: #8c1d18;
  --md-sys-on-error: #601410;
  --md-sys-on-error-container: #f9dedc;
}

/* Basic Reset & Body Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--md-sys-font-family-plain);
  background-color: var(--md-sys-background);
  color: var(--md-sys-on-background);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography Scale (Example - adjust as needed) */
h1, .display-large { font-family: var(--md-sys-font-family-brand); font-size: 3.5625rem; line-height: 4rem; font-weight: 600; letter-spacing: -0.015625em; }
h2, .headline-large { font-family: var(--md-sys-font-family-brand); font-size: 2.5rem; line-height: 3rem; font-weight: 600; }
h3, .title-large { font-family: var(--md-sys-font-family-brand); font-size: 1.375rem; line-height: 1.75rem; font-weight: 600; }
h4, .label-large { font-family: var(--md-sys-font-family-plain); font-size: 0.875rem; line-height: 1.25rem; font-weight: 500; }

/* Links */
a {
  color: var(--md-sys-primary);
  text-decoration: none;
  transition: color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}
a:hover {
  color: var(--md-sys-on-primary-container);
  text-decoration: underline;
}

/* Utility Classes (Optional, but helpful) */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Layout Components */
.app-header {
  background-color: var(--md-sys-surface-container);
  color: var(--md-sys-on-surface);
  padding: 0 var(--md-sys-spacing-4); /* Adjusted padding for height */
  box-shadow: var(--md-sys-elevation-level-1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 64px; /* Material 3 Top App Bar height */
}

.app-header .logo a {
  font-family: var(--md-sys-font-family-brand);
  font-size: 1.375rem; /* title-large */
  font-weight: 700;
  color: var(--md-sys-primary);
  text-decoration: none;
  padding: var(--md-sys-spacing-2) 0; /* Vertical padding for alignment */
}

.app-nav {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-1);
  font-size: 0.875rem; /* label-large */
  font-weight: 500;
  letter-spacing: 0.02em;
}

.app-nav a, .app-nav .btn-nav {
  font-family: var(--md-sys-font-family-plain);
  color: var(--md-sys-on-surface-variant);
  text-decoration: none;
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
  border-radius: var(--md-sys-shape-corner-full);
  transition: background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard), color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  font-weight: 500;
  font-size: 0.875rem; /* label-large */
  display: inline-flex; /* For proper padding and alignment */
  align-items: center;
  justify-content: center;
  min-height: 40px; /* Standard touch target size */
}

.app-nav a:hover, .app-nav .btn-nav:hover,
.app-nav a.active, .app-nav .btn-nav.active {
  background-color: var(--md-sys-secondary-container);
  color: var(--md-sys-on-secondary-container);
}

.app-footer {
  background-color: var(--md-sys-surface-container-lowest);
  color: var(--md-sys-on-surface-variant);
  text-align: center;
  padding: var(--md-sys-spacing-3) 0;
  border-top: 1px solid var(--md-sys-outline);
  font-size: 0.875rem;
  margin-top: auto; /* Ensures footer is at the bottom in a flex column body */
}

.main-content {
  flex-grow: 1;
  max-width: 1200px;
  width: calc(100% - var(--md-sys-spacing-6)); /* e.g., 100% - 48px (24px each side) */
  margin-left: auto;
  margin-right: auto;
  padding-top: var(--md-sys-spacing-5);
  padding-bottom: var(--md-sys-spacing-7);
}

.material-icon {
  font-family: 'Material Icons';
  font-size: 2.5rem;
  vertical-align: middle;
  color: var(--md-primary);
  margin-right: 0.2rem;
}

h2, h3 {
  font-family: 'Inter', 'Roboto', Arial, sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 1.2rem;
}

.btn {
  background: linear-gradient(90deg, var(--md-primary) 80%, var(--md-secondary) 100%);
  color: var(--md-on-primary);
  border: none;
  border-radius: 10px;
  padding: 0.7rem 1.7rem;
  font-size: 1.07rem;
  font-family: 'Inter', 'Roboto', Arial, sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, transform 0.12s;
  box-shadow: 0 2px 12px rgba(91,54,255,0.09);
  outline: none;
  margin: 0 0.2rem;
}

.btn:hover, .btn:focus {
  background: linear-gradient(90deg, #4427b5 80%, #009e8e 100%);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 20px rgba(91,54,255,0.14);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
input[type="tel"],
input[type="number"],
input[type="search"],
textarea,
select {
  font-family: var(--md-sys-font-family-plain);
  font-size: 1rem; /* body-large */
  color: var(--md-sys-on-surface);
  background-color: var(--md-sys-surface-container-highest);
  border: 1px solid var(--md-sys-outline);
  border-radius: var(--md-sys-shape-corner-extra-small); /* 4dp */
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-3);
  width: 100%;
  box-sizing: border-box;
  transition: border-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard),
              background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  /* margin-bottom is removed here, should be handled by .form-group or form gap */
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  border-color: var(--md-sys-primary);
  background-color: var(--md-sys-surface-container-high);
  box-shadow: 0 0 0 1px var(--md-sys-primary); /* Focus ring */
  outline: none;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2349454F'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--md-sys-spacing-2) center;
  background-size: 1.5rem;
  padding-right: calc(var(--md-sys-spacing-2) + 1.5rem + var(--md-sys-spacing-2));
}

header {
  position: fixed;
  width: 100%;
  top: 0; left: 0;
  z-index: 1000;
  border-bottom-left-radius: var(--md-radius);
  border-bottom-right-radius: var(--md-radius);
}

.main-content {
  margin-top: 5.3rem;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: 2.1rem;
  font-size: 1.18rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.app-nav a {
  color: var(--md-on-primary);
  text-decoration: none;
  padding: 0.4rem 1.1rem;
  border-radius: 7px;
  transition: background 0.18s, color 0.18s;
}

.app-nav a:hover {
  background: #fff2;
  color: #fff;
}

.card-gpt {
  display: flex;
  align-items: flex-start;
  gap: 2.2rem;
  background: #fff;
  border-radius: var(--md-radius-card);
  box-shadow: 0 7px 32px var(--md-shadow);
  padding: 2.1rem 2.3rem 1.7rem 2.3rem;
  margin-bottom: 2.7rem;
  transition: box-shadow 0.19s, transform 0.13s;
  position: relative;
  border-left: 8px solid var(--md-primary);
  animation: fadeInUp 0.7s cubic-bezier(.23,1.07,.32,1.01);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}

.card-gpt:hover {
  box-shadow: 0 14px 48px #5b36ff33;
  transform: translateY(-3px) scale(1.012);
}

.card-gpt .material-icon {
  font-size: 3.3rem;
  color: var(--md-secondary);
  margin-right: 1.1rem;
  margin-top: 0.2rem;
}

.card-gpt-info {
  flex: 1;
  min-width: 0;
}

.card-gpt strong {
  font-size: 1.25rem;
  font-weight: 700;
  color: #26264c;
  letter-spacing: 0.01em;
}

.card-gpt-desc {
  font-size: 1.08rem;
  color: #5a5a80;
  margin-top: 0.35rem;
  margin-bottom: 0.2rem;
  font-weight: 500;
}

.card-gpt-actions {
  display: flex;
  flex-direction: row;
  gap: 0.7rem;
  align-items: center;
}

.btn {
  border-radius: 10px;
  font-size: 1.09rem;
  font-family: 'Inter', 'Roboto', Arial, sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s, box-shadow 0.18s, transform 0.12s;
  box-shadow: 0 2px 12px rgba(91,54,255,0.09);
  outline: none;
  margin: 0 0.2rem;
  padding: 0.68rem 1.6rem;
}

.btn-abrir {
  background: linear-gradient(90deg, #2e7d32 80%, #00bfa6 100%);
  color: #fff;
}

.btn-editar {
  background: linear-gradient(90deg, #6750a4 80%, #5B36FF 100%);
  color: #fff;
}

.btn-excluir {
  background: linear-gradient(90deg, #b3261e 80%, #e53935 100%);
  color: #fff;
}

.btn-novo {
  background: linear-gradient(90deg, #5B36FF 80%, #00BFA6 100%);
  color: #fff;
  margin-top: 2.5rem;
  font-size: 1.13rem;
}

.btn:hover, .btn:focus {
  filter: brightness(1.09) contrast(1.12);
  transform: translateY(-1.5px) scale(1.03);
  box-shadow: 0 4px 22px rgba(91,54,255,0.14);
}

@media (max-width: 900px) {
  .main-content {
    padding: 0.7rem 0.2rem 2rem 0.2rem;
  }
  .card-gpt {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1.2rem 0.7rem 1.1rem 0.7rem;
  }
  .card-gpt-actions {
    width: 100%;
    margin-top: 1.1rem;
  }
}

iframe {
  border: 1.5px solid #e0e0e0;
  border-radius: 14px;
  background: #fafdff;
  margin-top: 1.5rem;
  box-shadow: 0 2px 16px #5b36ff11;
}

/* Forms - Material Design 3 Style */
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--md-sys-spacing-3);
}

form {
  display: flex;
  flex-direction: column;
  gap: var(--md-sys-spacing-1); /* Reduced gap, .form-group provides larger bottom margin */
  margin-top: var(--md-sys-spacing-4);
  margin-bottom: var(--md-sys-spacing-5);
}

label {
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.875rem; /* label-large */
  font-weight: 500;
  color: var(--md-sys-on-surface-variant);
  margin-bottom: var(--md-sys-spacing-1);
  display: block;
}

::placeholder {
  color: var(--md-sys-on-surface-variant);
  opacity: 0.7;
}

::-webkit-input-placeholder { 
  color: var(--md-sys-on-surface-variant);
  opacity: 0.7;
}

::-moz-placeholder { /* Firefox 19+ */
  color: var(--md-sys-on-surface-variant);
  opacity: 0.7;
}

:-ms-input-placeholder { /* IE 10+ */
  color: var(--md-sys-on-surface-variant);
  opacity: 0.7;
}

:-moz-placeholder { /* Firefox 18- */
  color: var(--md-sys-on-surface-variant);
  opacity: 0.7;
}

/* Cards - Material Design 3 Style */
.card {
  background-color: var(--md-sys-surface-container-low);
  border-radius: var(--md-sys-shape-corner-large);
  box-shadow: var(--md-sys-elevation-level-1);
  padding: var(--md-sys-spacing-4);
  margin-bottom: var(--md-sys-spacing-4);
  transition: box-shadow var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-standard);
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--md-sys-elevation-level-3);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-3);
  margin-bottom: var(--md-sys-spacing-3);
}

.card-icon {
  color: var(--md-sys-primary);
  font-size: 2.5rem; /* Adjust as needed */
}

.card-title {
  font-family: var(--md-sys-font-family-brand);
  font-size: 1.25rem; /* title-medium */
  font-weight: 600;
  color: var(--md-sys-on-surface);
  margin: 0;
}

.card-subtitle {
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.875rem; /* body-medium */
  color: var(--md-sys-on-surface-variant);
  margin-top: var(--md-sys-spacing-1);
}

.card-content {
  font-family: var(--md-sys-font-family-plain);
  font-size: 1rem; /* body-large */
  color: var(--md-sys-on-surface-variant);
  line-height: 1.5;
  flex-grow: 1;
}

.card-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--md-sys-spacing-2);
  padding-top: var(--md-sys-spacing-3);
  margin-top: var(--md-sys-spacing-3);
  border-top: 1px solid var(--md-sys-surface-variant); /* Optional separator */
}

/* Buttons - Material Design 3 Style */
.btn {
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.875rem; /* label-large */
  font-weight: 500;
  border-radius: var(--md-sys-shape-corner-full);
  padding: var(--md-sys-spacing-2) var(--md-sys-spacing-4);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
  -webkit-tap-highlight-color: transparent; /* Remove tap highlight on mobile */
}

/* Filled Button (Default .btn can be this, or make a specific .btn-filled) */
.btn, .btn-filled {
  background-color: var(--md-sys-primary);
  color: var(--md-sys-on-primary);
}

.btn:hover, .btn-filled:hover {
  box-shadow: var(--md-sys-elevation-level-1);
  background-color: color-mix(in srgb, var(--md-sys-primary) 92%, black);
}

.btn:focus, .btn-filled:focus {
  outline: 2px solid var(--md-sys-primary);
  outline-offset: 2px;
}

.btn:active, .btn-filled:active {
  transform: scale(0.98);
  box-shadow: none;
}

/* Outlined Button */
.btn-outlined {
  background-color: transparent;
  color: var(--md-sys-primary);
  border-color: var(--md-sys-outline);
}

.btn-outlined:hover {
  background-color: var(--md-sys-primary-container);
  border-color: var(--md-sys-primary);
}

.btn-outlined:focus {
  border-color: var(--md-sys-primary);
  outline: 2px solid var(--md-sys-primary);
  outline-offset: 2px;
}

.btn-outlined:active {
  background-color: color-mix(in srgb, var(--md-sys-primary-container) 85%, black);
  transform: scale(0.98);
}

/* Text Button */
.btn-text {
  background-color: transparent;
  color: var(--md-sys-primary);
  padding-left: var(--md-sys-spacing-2);
  padding-right: var(--md-sys-spacing-2);
}

.btn-text:hover {
  background-color: var(--md-sys-primary-container);
}

.btn-text:focus {
  outline: 2px solid var(--md-sys-primary);
  outline-offset: 2px;
}

.btn-text:active {
  background-color: color-mix(in srgb, var(--md-sys-primary-container) 85%, black);
  transform: scale(0.98);
}

/* Adapting existing semantic button classes */
.btn-abrir {
  background-color: var(--md-sys-secondary); /* Or a success-like color if more appropriate */
  color: var(--md-sys-on-secondary);
}

.btn-abrir:hover {
  background-color: color-mix(in srgb, var(--md-sys-secondary) 92%, black);
}

.btn-editar {
  background-color: var(--md-sys-tertiary); /* Or a neutral/secondary color */
  color: var(--md-sys-on-tertiary);
}

.btn-editar:hover {
  background-color: color-mix(in srgb, var(--md-sys-tertiary) 92%, black);
}

.btn-excluir {
  background-color: var(--md-sys-error);
  color: var(--md-sys-on-error);
}

.btn-excluir:hover {
  background-color: color-mix(in srgb, var(--md-sys-error) 92%, black);
}

.btn-novo {
  /* This was a larger button, can keep it as primary filled or make it stand out more if needed */
  /* For now, it will inherit .btn-filled styles */
  padding: var(--md-sys-spacing-3) var(--md-sys-spacing-5); /* Larger padding */
  font-size: 1rem; /* Slightly larger text if needed */
}

/* Icon Button (for actions with only an icon) */
.btn-icon {
  background-color: transparent;
  color: var(--md-sys-on-surface-variant);
  border-radius: var(--md-sys-shape-corner-full);
  padding: var(--md-sys-spacing-2);
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon .material-icon {
  font-size: 1.5rem; /* 24px */
  margin: 0;
}

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

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

/* Theme toggle button */
.btn-theme {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--md-sys-spacing-2);
  border-radius: 50%;
  color: var(--md-sys-on-surface);
  transition: background 0.2s;
}

.btn-theme:hover { background: var(--md-sys-surface-container-highest); }

/* Tables - Material Design 3 Style */
.table-container {
  overflow-x: auto;
  border: 1px solid var(--md-sys-outline-variant);
  border-radius: var(--md-sys-shape-corner-large);
  background-color: var(--md-sys-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

thead th {
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.875rem; /* label-large */
  font-weight: 500;
  color: var(--md-sys-on-surface-variant);
  text-align: left;
  padding: var(--md-sys-spacing-3);
  border-bottom: 1px solid var(--md-sys-outline-variant);
  background-color: var(--md-sys-surface-container-low);
}

tbody tr {
  transition: background-color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-standard);
}

tbody td {
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.9rem; /* body-medium, slightly smaller for tables */
  color: var(--md-sys-on-surface);
  text-align: left;
  padding: var(--md-sys-spacing-3);
  border-bottom: 1px solid var(--md-sys-outline-variant);
  vertical-align: middle;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--md-sys-surface-container-hover);
}

/* Badges - Material Design 3 Style */
.badge {
  display: inline-block;
  padding: var(--md-sys-spacing-0.5) var(--md-sys-spacing-2);
  font-size: 0.75rem; /* label-small */
  font-weight: 500;
  border-radius: var(--md-sys-shape-corner-medium);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
}

.badge-secondary { background: #03dac622; color: #03dac6; }
.badge-primary { background: #6750a422; color: #6750a4; }

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

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

.badge-neutral {
  background-color: var(--md-sys-surface-variant);
  color: var(--md-sys-on-surface-variant);
}

.badge-outline {
  background-color: transparent;
  border-color: currentColor;
}

/* Alert Messages - Material Design 3 Style */
.alert {
  padding: var(--md-sys-spacing-3);
  margin-bottom: var(--md-sys-spacing-4);
  border-radius: var(--md-sys-shape-corner-medium);
  font-family: var(--md-sys-font-family-plain);
  font-size: 0.875rem; /* label-large or body-medium */
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-2);
}

.alert .material-icon {
  font-size: 1.5rem; /* 24px */
  margin-right: var(--md-sys-spacing-1); /* Already gapped by flex, adjust if needed */
}

.alert-success {
  background-color: var(--md-sys-tertiary-container); /* Or a specific success green if defined */
  color: var(--md-sys-on-tertiary-container);
}

.alert-success .material-icon {
  color: var(--md-sys-tertiary);
}

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

.alert-error .material-icon {
  color: var(--md-sys-error);
}

.alert-warning {
  background-color: color-mix(in srgb, var(--md-sys-warning) 20%, var(--md-sys-surface-container-lowest)); /* Custom warning, using a mix */
  color: var(--md-sys-on-surface); /* Ensure good contrast */
  border: 1px solid var(--md-sys-warning);
}

.alert-warning .material-icon {
  color: var(--md-sys-warning);
}

.alert-info {
  background-color: var(--md-sys-secondary-container);
  color: var(--md-sys-on-secondary-container);
}

.alert-info .material-icon {
  color: var(--md-sys-secondary);
}

/* Page Layout & Helpers */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--md-sys-spacing-4);
  flex-wrap: wrap;
  gap: var(--md-sys-spacing-2);
}

.page-header h1 {
    font-size: 1.75rem; /* 28px */
    font-weight: 700;
    color: var(--md-sys-on-surface);
    margin: 0;
}

.page-actions {
    display: flex;
    gap: var(--md-sys-spacing-2);
}

.filters-card .card-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--md-sys-spacing-3);
}

.filters-card .card-actions {
    justify-content: flex-end;
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--md-sys-spacing-4);
    margin-bottom: var(--md-sys-spacing-4);
}

.card-content.no-padding {
    padding: 0;
}

.table .badge {
    font-size: 0.8rem; /* Slightly smaller in tables */
}

.cell-ellipsis {
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Header Layout & Helpers */
.app-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--md-sys-spacing-4);
}

.app-nav {
    justify-self: center; /* Center the nav links */
}

.user-actions {
    justify-self: end;
}

.btn-nav .material-icon {
    margin-right: var(--md-sys-spacing-1);
    font-size: 1.25rem; /* 20px */
}

/* Responsive Navigation Drawer */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--md-sys-on-surface);
  padding: var(--md-sys-spacing-2);
  cursor: pointer;
}

.app-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--md-sys-surface-container);
  box-shadow: 0 4px 16px rgb(0 0 0 / 18%);
  transform: translateX(-100%);
  transition: transform 0.28s var(--md-easing-standard);
  z-index: 1200;
  display: flex;
  flex-direction: column;
}

.app-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-2);
  padding: var(--md-sys-spacing-4);
}

.drawer-title {
  font-weight: 600;
  font-size: 1.25rem;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  padding: var(--md-sys-spacing-2);
}

.drawer-link {
  display: flex;
  align-items: center;
  gap: var(--md-sys-spacing-2);
  padding: var(--md-sys-spacing-3) var(--md-sys-spacing-4);
  border-radius: var(--md-sys-radius-full);
  color: var(--md-sys-on-surface);
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}

.drawer-link:hover {
  background: var(--md-sys-surface-container-highest);
}

.drawer-link.active {
  background: var(--md-sys-primary-container);
  color: var(--md-sys-on-primary-container);
}

.drawer-link .material-icon { font-size: 1.3rem; }

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgb(0 0 0 / 35%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 1100;
}

.drawer-backdrop.show {
  opacity: 1;
  pointer-events: all;
}

/* Show/Hide nav for breakpoints */
.app-nav { display: none; }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .app-nav { display: flex; }
  .app-drawer, .drawer-backdrop { display: none; }
}