:root {
    --bg-primary: #010001;
    --bg-secondary: #0a0a0b;
    --bg-tertiary: #141415;
    --bg-elevated: #1a1a1c;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --text-muted: #606060;
    --border-color: #252527;
    --border-light: #1e1e20;
    --accent: #5be4a6;
    --accent-hover: #4cd492;
    --accent-subtle: rgba(91, 228, 166, 0.1);
    --danger: #e53935;
    --danger-hover: #c62828;
    --success: #43a047;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --transition: all 0.15s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 3rem 1.5rem 2rem;
}

header {
    margin-bottom: 2.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.logo svg {
    width: 28px;
    height: 28px;
    color: var(--accent);
}

.logo h1 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
}

.section-header {
    margin-bottom: 1rem;
}

section h2 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.count {
    color: var(--text-muted);
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
}

.required {
    color: var(--danger);
}

.optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.75rem;
}

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

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: var(--transition);
}

input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-elevated);
}

input::placeholder {
    color: var(--text-muted);
}

.password-input-wrapper {
    position: relative;
}

.password-input-wrapper input {
    padding-right: 3rem;
}

.toggle-visibility {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
}

.toggle-visibility:hover {
    color: var(--text-secondary);
}

.toggle-visibility svg {
    width: 18px;
    height: 18px;
}

.eye-off-icon { display: none; }
.toggle-visibility.active .eye-icon { display: none; }
.toggle-visibility.active .eye-off-icon { display: block; }


.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6875rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--accent);
    color: #010001;
    font-weight: 600;
    width: 100%;
}

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

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

.btn-secondary:hover {
    background: var(--bg-elevated);
    border-color: var(--text-muted);
}

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

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-danger:hover {
    background: var(--danger-hover);
}

.button-group {
    display: flex;
    gap: 0.75rem;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.375rem);
    left: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    z-index: 100;
    overflow: hidden;
}

.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.625rem 1rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--accent-subtle);
    color: var(--accent);
}

.search-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.search-wrapper svg {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.search-wrapper input {
    padding-left: 2.5rem;
}

.passwords-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.password-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: var(--transition);
}

.password-card:hover {
    border-color: var(--border-color);
    background: var(--bg-elevated);
}

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

.password-title {
    font-weight: 500;
    font-size: 0.9375rem;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.password-username {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.password-value {
    font-family: 'SF Mono', Monaco, 'Fira Code', monospace;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.password-masked {
    letter-spacing: 1px;
}

.password-actions {
    display: flex;
    gap: 0.125rem;
}

.password-actions button {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.password-actions button:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.password-actions button.delete-btn:hover {
    background: rgba(229, 57, 53, 0.1);
    color: var(--danger);
}

.password-actions svg {
    width: 16px;
    height: 16px;
}


.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.empty-state span {
    font-size: 0.8125rem;
}

.empty-state.hidden {
    display: none;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(1, 0, 1, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    padding: 1rem;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    transform: scale(0.95);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-body p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.modal-body strong {
    color: var(--text-primary);
}

.modal-warning {
    font-size: 0.8125rem !important;
    color: var(--text-muted) !important;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: var(--bg-elevated);
    color: var(--text-primary);
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.25s ease;
    z-index: 1001;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-left: 3px solid var(--success);
}

.toast.error {
    border-left: 3px solid var(--danger);
}

/* Footer */
footer {
    text-align: center;
    padding: 1.5rem 0;
}

footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 2rem 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    section {
        padding: 1.25rem;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .dropdown-menu {
        width: 100%;
    }

    .password-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .password-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 0.75rem;
        padding-top: 0.75rem;
        border-top: 1px solid var(--border-light);
    }
}