:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #22c55e;
    --success-hover: #16a34a;
    --warning: #eab308;
    --warning-hover: #ca8a04;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --bg: #0B3B2C;
    --card: #ffffff;
    --border: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --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);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Courier New', monospace;
    --container-max: 1280px;
    --container-padding: 24px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-md);
}

.login-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border);
}

.login-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/*.login-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}*/

.login-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-sans);
    transition: border-color 0.15s, box-shadow 0.15s;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s;
    gap: var(--spacing-xs);
    font-family: var(--font-sans);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--success-hover);
}

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

.btn-warning:hover:not(:disabled) {
    background-color: var(--warning-hover);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-hover);
}

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--bg);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 4px 12px;
    font-size: 13px;
}

.error-message {
    color: var(--danger);
    font-size: 13px;
    margin-top: var(--spacing-xs);
    text-align: center;
    padding: var(--spacing-sm);
    background: rgba(239, 68, 68, 0.05);
    border-radius: var(--radius-sm);
    display: none;
}

.error-message.show {
    display: block;
}

.app-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.logo-container {
    margin-bottom: 20px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
}

.logo-wst {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 48px;
    color: #ff0000;
    letter-spacing: 2px;
    line-height: 1.2;
}

.logo-mail {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 48px;
    color: #111827;
    letter-spacing: 1px;
    line-height: 1.2;
    margin-left: 0;
}

@media (max-width: 480px) {
    .logo-wst, .logo-mail {
        font-size: 36px;
    }
}

.logo span {
    color: var(--primary);
}

.logo-wst-small {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900 !important;
    font-size: 24px !important;
    color: #ff0000 !important;
    letter-spacing: 1px !important;
    line-height: 1 !important;
}

.logo-mail-small {
    font-family: 'Orbitron', sans-serif !important;
    font-weight: 700 !important;
    font-size: 24px !important;
    color: #000 !important;
    letter-spacing: 0.5px !important;
    line-height: 1 !important;
    margin-left: 2px !important;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.email-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.email-display {
    flex: 1;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    min-width: 250px;
}

.email-address {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-all;
    display: block;
}

#copy-email-btn {
    width: auto;
    min-width: 80px;
    white-space: nowrap;
}

@media (max-width: 640px) {
    .email-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .email-display {
        width: 100%;
    }
    
    #copy-email-btn {
        width: 100%;
    }
}

.email-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.email-display {
    width: 100%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
}

.email-address {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-all;
    display: block;
}

.copy-wrapper {
    display: flex;
    justify-content: flex-end;
    width: 100%;
}

.copy-wrapper .btn {
    min-width: 100px;
}

.domain-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.domain-dropdown {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font-sans);
    background: var(--card);
    min-width: 200px;
}

.action-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.fresh-indicator {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(234, 179, 8, 0.1);
    border-left: 3px solid var(--warning);
    color: #854d0e;
    font-size: 13px;
    border-radius: var(--radius-sm);
    display: none;
}

.fresh-indicator.show {
    display: block;
}

.mailbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.timestamp {
    font-size: 13px;
    color: var(--text-secondary);
}

.message-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-row {
    display: grid;
    grid-template-columns: 2fr 3fr 1.5fr 1fr;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s;
}

.message-row:hover {
    background: var(--bg);
}

.message-from {
    font-weight: 600;
    color: var(--text-primary);
}

.message-subject {
    color: var(--text-primary);
}

.message-date {
    color: var(--text-secondary);
    font-size: 13px;
}

.message-size {
    color: var(--text-secondary);
    font-size: 13px;
    text-align: right;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
}

.empty-state svg {
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal {
    background: var(--card);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: var(--spacing-xs);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

.message-meta {
    background: var(--bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-lg);
}

.meta-from, .meta-to, .meta-date {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.message-body {
    padding: var(--spacing-md);
    background: var(--bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-md);
    max-height: 400px;
    overflow-y: auto;
    word-break: break-word;
}

.attachment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.attachment-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
}

.attachment-link {
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--card);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
    font-size: 14px;
    z-index: 2000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    max-width: 400px;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--danger);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-info {
    border-left-color: var(--primary);
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

@media (max-width: 768px) {
    :root {
        --container-padding: 16px;
    }
    
    .message-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }
    
    .message-size {
        text-align: left;
    }
    
    .email-display {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .domain-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .domain-dropdown {
        width: 100%;
    }
    
    .action-buttons {
        justify-content: stretch;
    }
    
    .action-buttons .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-lg);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

.message-row.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border: none;
    pointer-events: none;
    opacity: 0.7;
}

.skeleton-line {
    height: 20px;
    background: rgba(0,0,0,0.1);
    border-radius: 4px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.refresh-indicator {
    position: sticky;
    top: 70px;
    background: var(--primary);
    color: white;
    padding: 8px;
    text-align: center;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    font-size: 13px;
    animation: pulse 1.5s infinite;
    z-index: 10;
}

@keyframes pulse {
    0% { opacity: 0.7; }
    50% { opacity: 1; }
    100% { opacity: 0.7; }
}

.mailbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}