/* Material Design 3 - Expressive Theme CSS */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    line-height: 1.6;
}

/* Surface Components */
.md-surface {
    background: var(--md-sys-color-surface);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--md-sys-elevation-level1);
}

.md-card {
    background: var(--md-sys-color-surface-container-low, #F5F5F5);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid var(--md-sys-color-outline-variant);
}

/* Typography */
.md-display-large {
    font-size: var(--md-sys-typescale-display-large);
    font-weight: 700;
    line-height: 1.2;
}

.md-display-medium {
    font-size: var(--md-sys-typescale-display-medium);
    font-weight: 700;
    line-height: 1.2;
}

.md-display-small {
    font-size: var(--md-sys-typescale-display-small);
    font-weight: 700;
    line-height: 1.2;
}

.md-headline-large {
    font-size: var(--md-sys-typescale-headline-large);
    font-weight: 600;
    line-height: 1.25;
}

.md-headline-medium {
    font-size: var(--md-sys-typescale-headline-medium);
    font-weight: 600;
    line-height: 1.25;
}

.md-headline-small {
    font-size: var(--md-sys-typescale-headline-small);
    font-weight: 600;
    line-height: 1.25;
}

.md-title-large {
    font-size: var(--md-sys-typescale-title-large);
    font-weight: 500;
    line-height: 1.3;
}

.md-title-medium {
    font-size: var(--md-sys-typescale-title-medium);
    font-weight: 500;
    line-height: 1.3;
}

.md-title-small {
    font-size: var(--md-sys-typescale-title-small);
    font-weight: 500;
    line-height: 1.3;
}

.md-body-large {
    font-size: var(--md-sys-typescale-body-large);
    font-weight: 400;
    line-height: 1.5;
}

.md-body-medium {
    font-size: var(--md-sys-typescale-body-medium);
    font-weight: 400;
    line-height: 1.5;
}

.md-body-small {
    font-size: var(--md-sys-typescale-body-small);
    font-weight: 400;
    line-height: 1.4;
}

/* Buttons */
.md-button {
    padding: 10px 24px;
    border-radius: 20px;
    border: none;
    font-weight: 500;
    font-size: var(--md-sys-typescale-label-large);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.md-button-filled {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

.md-button-filled:hover {
    box-shadow: var(--md-sys-elevation-level2);
}

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

.md-button-outlined {
    background-color: transparent;
    color: var(--md-sys-color-primary);
    border: 1px solid var(--md-sys-color-outline);
}

.md-button-text {
    background-color: transparent;
    color: var(--md-sys-color-primary);
    padding: 8px 12px;
}

/* Text Fields */
.md-text-field {
    margin-bottom: 24px;
}

.md-text-field label {
    display: block;
    font-size: var(--md-sys-typescale-body-medium);
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 8px;
}

.md-text-field input,
.md-text-field textarea,
.md-text-field select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 8px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-size: var(--md-sys-typescale-body-large);
    font-family: inherit;
    transition: border-color 0.2s;
}

.md-text-field input:focus,
.md-text-field textarea:focus,
.md-text-field select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    border-width: 2px;
    padding: 11px;
}

/* Chips */
.md-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 8px;
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
    font-size: var(--md-sys-typescale-label-large);
    margin: 4px;
}

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

/* Progress */
.md-progress-linear {
    height: 4px;
    background-color: var(--md-sys-color-surface-variant);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.md-progress-linear-bar {
    height: 100%;
    background-color: var(--md-sys-color-primary);
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Utility Classes */
.text-primary {
    color: var(--md-sys-color-primary) !important;
}

.text-secondary {
    color: var(--md-sys-color-secondary) !important;
}

.text-error {
    color: var(--md-sys-color-error) !important;
}

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.align-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.text-center {
    text-align: center;
}

/* Content Container */
.content {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
    margin-left: 80px;
    min-height: calc(100vh - 40px);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 12px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    border-bottom: 2px solid var(--md-sys-color-outline-variant);
}

td {
    padding: 12px;
    color: var(--md-sys-color-on-surface-variant);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

/* Responsive Grid */
.grid {
    display: grid;
    gap: 24px;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .content {
        margin-left: 0;
    }
}

/* Animation Classes */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.animate-slide-up {
    animation: slideInUp 0.4s ease-out;
}

/* Status Messages */
.status-success {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    padding: 12px;
    border-radius: 8px;
    margin: 12px 0;
}

.status-error {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    padding: 12px;
    border-radius: 8px;
    margin: 12px 0;
}

.status-warning {
    background: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
    padding: 12px;
    border-radius: 8px;
    margin: 12px 0;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    border: 3px solid var(--md-sys-color-surface-variant);
    border-top: 3px solid var(--md-sys-color-primary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--md-sys-color-surface-variant);
}

::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-on-surface-variant);
}