:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-success: #16a34a;
    --color-success-bg: #dcfce7;
    --color-error: #dc2626;
    --color-error-bg: #fee2e2;
    --color-warning: #ea580c;
    --color-warning-bg: #ffedd5;
    --color-info: #0891b2;
    --color-info-bg: #cffafe;
    --color-border: #e5e7eb;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-secondary: #f9fafb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

* {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    background: var(--color-bg-secondary);
    color: var(--color-text);
    line-height: 1.6;
}

h1 {
    color: var(--color-primary);
    font-size: 2rem;
    margin: 1rem 0;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    margin: 0 0 1rem 0;
    font-weight: 600;
    color: var(--color-text);
}

h3 {
    font-size: 1.25rem;
    margin: 0 0 0.75rem 0;
    font-weight: 600;
    color: var(--color-text);
}

form {
    display: grid;
    gap: 0.75rem;
    max-width: 100%;
}

/* Horizontal form layout */
.horizontal-form {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.horizontal-form .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 120px;
}

.horizontal-form .form-group:has(button) {
    flex: 0 0 auto;
    min-width: auto;
    margin-left: auto;
}

.horizontal-form button {
    white-space: nowrap;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--color-text);
    font-size: 0.875rem;
}

input,
textarea,
select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background: var(--color-bg);
    color: var(--color-text);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input[type="file"] {
    padding: 0.5rem;
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-light);
}

button {
    padding: 0.625rem 1.25rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

button:hover {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

button.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

button.btn-secondary:hover {
    background: var(--color-bg-secondary);
}

button.btn-danger {
    background: var(--color-error);
}

button.btn-danger:hover {
    background: #b91c1c;
}

.hidden {
    display: none !important;
}

.row {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    margin: 1rem 0;
    box-shadow: var(--shadow-sm);
}

/* Forms Row Layout */
.forms-row {
    margin: 1rem 0;
}

.forms-row .form-card {
    margin: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

/* Two Column Layout */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    align-items: start;
}

.two-column-layout .column {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.two-column-layout .column .card {
    margin: 0 0 1rem 0;
}

.two-column-layout .column .card:last-child {
    margin-bottom: 0;
}

pre {
    background: var(--color-bg-secondary);
    padding: 1rem;
    border-radius: var(--radius-md);
    overflow: auto;
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Notification System */
.notification-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 400px;
}

.notification {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    background: white;
    border-left: 4px solid;
    min-width: 320px;
    animation: slideIn 0.3s ease;
}

.notification-enter {
    opacity: 0;
    transform: translateX(100%);
}

.notification-exit {
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.notification-success {
    border-left-color: var(--color-success);
    background: var(--color-success-bg);
}

.notification-error {
    border-left-color: var(--color-error);
    background: var(--color-error-bg);
}

.notification-warning {
    border-left-color: var(--color-warning);
    background: var(--color-warning-bg);
}

.notification-info {
    border-left-color: var(--color-info);
    background: var(--color-info-bg);
}

.notification-icon {
    font-size: 1.25rem;
    font-weight: bold;
    flex-shrink: 0;
}

.notification-success .notification-icon {
    color: var(--color-success);
}

.notification-error .notification-icon {
    color: var(--color-error);
}

.notification-warning .notification-icon {
    color: var(--color-warning);
}

.notification-info .notification-icon {
    color: var(--color-info);
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-message {
    font-size: 0.875rem;
    color: var(--color-text);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.notification-close {
    background: none;
    border: none;
    padding: 0;
    font-size: 1.25rem;
    color: var(--color-text-light);
    cursor: pointer;
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.notification-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-text);
    box-shadow: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

button.loading {
    position: relative;
    color: transparent;
}

button.loading::after {
    content: '';
    position: absolute;
    width: 1rem;
    height: 1rem;
    top: 50%;
    left: 50%;
    margin-left: -0.5rem;
    margin-top: -0.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

/* Form feedback */
.form-group {
    margin-bottom: 1rem;
}

.form-error {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-help {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

input.error,
textarea.error,
select.error {
    border-color: var(--color-error);
}

input.error:focus,
textarea.error:focus,
select.error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Lists */
ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

li {
    padding: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s ease;
}

li:last-child {
    border-bottom: none;
}

li:hover {
    background: var(--color-bg-secondary);
}

/* Checkboxes */
.asset-checkbox {
    width: auto;
    margin-right: 0.5rem;
    cursor: pointer;
}

/* Status messages */
.status-message {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    font-size: 0.875rem;
}

.status-success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.status-error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.status-info {
    background: var(--color-info-bg);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

/* Responsive */
@media (max-width: 968px) {
    /* Stack forms and columns on tablets and smaller */
    .forms-row {
        grid-template-columns: 1fr;
    }

    .two-column-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    body {
        padding: 0.5rem;
    }

    .card {
        padding: 1rem;
    }

    .notification-container {
        left: 0.5rem;
        right: 0.5rem;
        max-width: none;
    }

    .notification {
        min-width: auto;
    }

    h1 {
        font-size: 1.5rem;
    }

    /* Stack form rows on mobile */
    .form-row {
        grid-template-columns: 1fr;
    }

    /* Stack horizontal forms on mobile */
    .horizontal-form {
        flex-direction: column;
        align-items: stretch;
    }

    .horizontal-form .form-group {
        width: 100%;
    }

    .horizontal-form button {
        width: 100%;
    }
}