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

:root {
    --bg: #0f0f23;
    --bg-card: #1a1a3e;
    --bg-card-hover: #222255;
    --primary: #6c5ce7;
    --primary-hover: #5a4bd1;
    --secondary: #00cec9;
    --secondary-hover: #00b5b0;
    --text: #e0e0ff;
    --text-muted: #8888bb;
    --border: #2a2a5a;
    --danger: #ff6b6b;
    --success: #00b894;
    --warning: #fdcb6e;
    --radius: 12px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Cairo', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 20px;
    background-image:
        radial-gradient(ellipse at 10% 20%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(0, 206, 201, 0.08) 0%, transparent 50%);
}

.container {
    width: 100%;
    max-width: 680px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-top: 20px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 32px;
}

h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}

.lang-switch {
    display: flex;
    gap: 8px;
}

.btn-lang {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 6px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.3s;
}

.btn-lang:hover {
    border-color: var(--primary);
    color: var(--text);
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s;
}

.card:hover {
    border-color: rgba(108, 92, 231, 0.3);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
}

.card-icon {
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

.badge {
    background: var(--primary);
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    margin-right: auto;
}

.email-display {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.email-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    color: var(--text);
    font-size: 16px;
    font-family: monospace;
    direction: ltr;
    text-align: left;
    transition: border-color 0.3s;
}

.email-input:focus {
    outline: none;
    border-color: var(--primary);
}

.email-input::placeholder {
    color: var(--text-muted);
    font-family: 'Cairo', sans-serif;
    font-size: 13px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #a29bfe);
    color: white;
    flex: 1;
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary);
    color: #0f0f23;
}

.btn-secondary:hover:not(:disabled) {
    box-shadow: 0 4px 20px rgba(0, 206, 201, 0.3);
    transform: translateY(-1px);
}

.btn-copy {
    background: var(--secondary);
    color: #0f0f23;
    padding: 12px 16px;
    font-size: 18px;
    min-width: 50px;
    justify-content: center;
}

.btn-back {
    background: transparent;
    color: var(--text);
    padding: 8px 12px;
    font-size: 18px;
}

.btn-delete {
    background: transparent;
    color: var(--danger);
    padding: 8px 12px;
    font-size: 18px;
    margin-right: auto;
}

.actions {
    display: flex;
    gap: 10px;
}

.timer-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 8px 12px;
    background: rgba(0, 206, 201, 0.1);
    border-radius: 8px;
    font-size: 12px;
    color: var(--secondary);
}

.inbox-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.inbox-list::-webkit-scrollbar {
    width: 6px;
}

.inbox-list::-webkit-scrollbar-track {
    background: transparent;
}

.inbox-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.email-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid transparent;
}

.email-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border);
}

.email-item:active {
    transform: scale(0.99);
}

.email-item .from {
    font-weight: 600;
    font-size: 14px;
    min-width: 120px;
    color: var(--text);
}

.email-item .subject {
    flex: 1;
    font-size: 13px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.email-item .time {
    font-size: 11px;
    color: var(--text-muted);
    direction: ltr;
    white-space: nowrap;
}

.email-item.unread {
    border-color: var(--primary);
    background: rgba(108, 92, 231, 0.1);
}

.email-item.unread .from {
    color: var(--primary);
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 30px;
    color: var(--text-muted);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.message-card .card-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.message-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.message-meta span:first-child {
    font-weight: 600;
    font-size: 14px;
}

.msg-subject {
    font-size: 12px;
    color: var(--text-muted);
}

.message-body {
    padding: 20px;
    line-height: 1.8;
    font-size: 14px;
    max-height: 500px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.message-body::-webkit-scrollbar {
    width: 6px;
}

.message-body::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    color: var(--text);
    padding: 12px 24px;
    border-radius: 8px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    font-size: 14px;
    opacity: 0;
    transition: all 0.4s;
    z-index: 1000;
}

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

footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 13px;
}

.footer-small {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.6;
}

@media (max-width: 600px) {
    body { padding: 12px; }
    .email-input { font-size: 14px; padding: 12px; }
    .btn { padding: 10px 16px; font-size: 13px; }
    .actions { flex-direction: column; }
    .email-item { flex-wrap: wrap; }
    .email-item .from { min-width: 100px; }
    .email-item .time { width: 100%; text-align: left; margin-top: 4px; }
    h1 { font-size: 22px; }
    .header-content { flex-direction: column; gap: 10px; }
}