:root {
    --bg-color: #0f141a;
    --card-bg: #1a212a;
    --border-color: #2d3844;
    --accent-color: #3390EC;
    --text-main: #ffffff;
    --text-dim: #708499;
}

body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    overflow: hidden;
}

.hidden { display: none !important; }

.overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.login-card {
    width: 100%;
    max-width: 320px;
    padding: 40px 20px;
    text-align: center;
}

.logo { font-size: 40px; margin-bottom: 20px; }

.login-card h1 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 30px;
    letter-spacing: 0.5px;
}

.login-card input {
    width: 100%;
    background: #242f3d;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: white;
    font-size: 16px;
    margin-bottom: 12px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.login-card input:focus {
    border-color: var(--accent-color);
    outline: none;
}

.login-card button {
    width: 100%;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
}

.container {
    width: 100%;
    max-width: 500px;
    height: 90vh;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-size: 17px;
    margin: 0;
    font-weight: 600;
}

.refresh-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.refresh-btn:hover {
    background: var(--accent-color);
    color: white;
}

.refresh-btn:active {
    transform: scale(0.96);
}

.table-header {
    display: flex;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0,0,0,0.2);
    font-size: 11px;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.list-wrapper {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.phone {
    font-family: 'Roboto Mono', monospace;
    font-size: 15px;
}

.code {
    font-family: 'Roboto Mono', monospace;
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-color);
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    background: rgba(51, 144, 236, 0.1);
}

.toast {
    position: fixed;
    bottom: 40px;
    background: #ffffff;
    color: #000000;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 2000;
}

@media (max-width: 500px) {
    .container {
        height: 100vh;
        border: none;
    }
}