:root {
    --color-bg: #1c1c1c;
    --color-bg-alt: #242424;
    --color-surface: #2a2a2a;
    --color-border: #383838;
    --color-text: #e0e0e0;
    --color-text-muted: #b0b0b0;
    --color-accent: #d32f2f;
    --color-accent-hover: #e53935;
    --color-accent-active: #b71c1c;
    --color-focus-ring: #ff5252;
    --color-valid: #4caf50;
    --color-invalid: #ff4d4d;
}

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

body, a, button, input, textarea, select {
    outline-color: var(--color-focus-ring);
}

a, .btn-link {
    color: var(--color-accent);
    text-decoration: none;
}

    a:hover, .btn-link:hover {
        color: var(--color-accent-hover);
    }

    a:active, .btn-link:active {
        color: var(--color-accent-active);
    }

.btn-primary {
    color: #fff;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-active));
    border: 1px solid var(--color-accent-active);
}

    .btn-primary:hover {
        background: var(--color-accent-hover);
        border-color: var(--color-accent-hover);
    }

    .btn-primary:active {
        background: var(--color-accent-active);
    }

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.15rem rgba(255,82,82,0.35), 0 0 0 0.3rem rgba(255,82,82,0.15);
    border-color: var(--color-accent-hover);
}

.content {
    padding-top: 1.1rem;
}

h1, h2, h3, h4, h5 {
    color: var(--color-text);
}

    h1:focus {
        outline: none;
    }

.form-control, .form-select, .form-check-input, .form-control:focus {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

    .form-control::placeholder {
        color: var(--color-text-muted);
    }

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--color-valid);
}

.invalid {
    outline: 1px solid var(--color-invalid);
}

.validation-message {
    color: var(--color-invalid);
}

.blazor-error-boundary {
    background: #3a0000;
    border: 1px solid #ff5252;
    padding: 1rem 1rem 1rem 3.7rem;
    color: #fff;
    background-image: none;
    position: relative;
}

    .blazor-error-boundary::before {
        content: "";
        position: absolute;
        left: 1rem;
        top: 1rem;
        width: 1.5rem;
        height: 1.5rem;
        background: radial-gradient(circle at 40% 40%, #ff867c, #ff1744);
        border-radius: 4px;
    }

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: var(--color-border);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--color-text-muted);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Scrollbar (WebKit) */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 5px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: #555;
    }

/* Unified Button Styles */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

.btn-primary {
    color: #fff !important;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-active)) !important;
    border: 1px solid var(--color-accent-active) !important;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-accent-hover) !important;
    border-color: var(--color-accent-hover) !important;
    color: #fff !important;
}

.btn-primary:active:not(:disabled) {
    background: var(--color-accent-active) !important;
}

.btn-primary:disabled {
    background: #555 !important;
    border-color: #444 !important;
    color: #999 !important;
    cursor: not-allowed;
}

.btn-secondary {
    color: var(--color-text) !important;
    background: var(--color-surface) !important;
    border: 1px solid var(--color-border) !important;
}

.btn-secondary:hover:not(:disabled) {
    background: #3a3a3a !important;
    border-color: #4a4a4a !important;
    color: #fff !important;
}

.btn-secondary:disabled {
    background: #2a2a2a !important;
    border-color: #333 !important;
    color: #666 !important;
    cursor: not-allowed;
}

.btn-danger {
    color: #fff !important;
    background: linear-gradient(180deg, #d32f2f, #b71c1c) !important;
    border: 1px solid #b71c1c !important;
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(180deg, #e53935, #c62828) !important;
    border-color: #c62828 !important;
    color: #fff !important;
}

.btn-danger:disabled {
    background: #555 !important;
    border-color: #444 !important;
    color: #999 !important;
    cursor: not-allowed;
}

.btn-success {
    color: #fff !important;
    background: linear-gradient(180deg, #43a047, #2e7d32) !important;
    border: 1px solid #1b5e20 !important;
}

.btn-success:hover:not(:disabled) {
    background: linear-gradient(180deg, #4caf50, #388e3c) !important;
    border-color: #2e7d32 !important;
    color: #fff !important;
}

.btn-success:disabled {
    background: #555 !important;
    border-color: #444 !important;
    color: #999 !important;
    cursor: not-allowed;
}

.btn-info {
    color: #fff !important;
    background: linear-gradient(180deg, #2196f3, #1976d2) !important;
    border: 1px solid #1565c0 !important;
}

.btn-info:hover:not(:disabled) {
    background: linear-gradient(180deg, #42a5f5, #1e88e5) !important;
    border-color: #1976d2 !important;
    color: #fff !important;
}

.btn-info:disabled {
    background: #555 !important;
    border-color: #444 !important;
    color: #999 !important;
    cursor: not-allowed;
}

.btn-outline-secondary {
    color: var(--color-text-muted) !important;
    background: transparent !important;
    border: 1px solid var(--color-border) !important;
}

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--color-surface) !important;
    border-color: #555 !important;
    color: var(--color-text) !important;
}

.btn-outline-secondary:disabled {
    color: #555 !important;
    border-color: #333 !important;
    cursor: not-allowed;
}

/* Button Group Styling */
.btn-group > .btn:first-child {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.btn-group > .btn:last-child {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* Checkbox - visible checkmark on dark theme */
.form-check-input {
    background-color: var(--color-surface);
    border: 2px solid #666;
    width: 1.15em;
    height: 1.15em;
}

.form-check-input:checked {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
}

.form-check-input:disabled {
    opacity: 0.5;
}

/* Toast notification */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1090;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast-notification {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 0.75rem 1.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    animation: toast-slide-in 0.3s ease-out;
    min-width: 250px;
    max-width: 400px;
}

.toast-notification.toast-success {
    border-left: 4px solid var(--color-valid);
}

.toast-notification.toast-error {
    border-left: 4px solid var(--color-invalid);
}

@keyframes toast-slide-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ET badge on Review page */
.badge-et {
    background: linear-gradient(135deg, #ff9800, #f57c00) !important;
    color: #fff !important;
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
}