* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #1e0533, #110e1b, #05263a);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: #fff;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.glass-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.45);
}

.glass-container-large {
    max-width: 1000px;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #b0b0b0;
    padding: 3px 8px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.75rem;
    margin-left: 8px;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: rgba(79, 172, 254, 0.2);
    border-color: #4facfe;
    color: #4facfe;
}

.copy-btn.copied {
    background: rgba(46, 213, 115, 0.2);
    border-color: #2ed573;
    color: #2ed573;
}

.email-cell {
    min-width: 200px;
    word-break: break-all;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(to right, #00f2fe, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    color: #b0b0b0;
    margin-bottom: 30px;
    font-size: 1rem;
}

.input-group {
    position: relative;
    margin-bottom: 25px;
    text-align: left;
}

.input-group input {
    width: 100%;
    padding: 15px 15px 15px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, background 0.3s;
}

.input-group input:focus {
    border-color: #4facfe;
    background: rgba(255, 255, 255, 0.1);
}

.input-group label {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: #a0a0a0;
    font-size: 1rem;
    pointer-events: none;
    transition: 0.3s ease all;
}

.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label {
    top: -10px;
    left: 10px;
    font-size: 0.8rem;
    padding: 0 5px;
    background: #110e1b;
    border-radius: 5px;
    color: #4facfe;
}

.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-bottom: 20px;
}

.btn:hover {
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(79, 172, 254, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

.hidden {
    display: none !important;
}

.msg {
    padding: 15px;
    border-radius: 10px;
    margin-top: 15px;
    font-weight: 400;
}

.msg.success {
    background: rgba(46, 213, 115, 0.15);
    border: 1px solid rgba(46, 213, 115, 0.3);
    color: #2ed573;
}

.msg.error {
    background: rgba(255, 71, 87, 0.15);
    border: 1px solid rgba(255, 71, 87, 0.3);
    color: #ff4757;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    text-align: left;
}

th, td {
    padding: 12px 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
    color: #4facfe;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
}

td {
    color: #ddd;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge.used {
    background: rgba(255, 71, 87, 0.2);
    color: #ff4757;
}

.status-badge.unused {
    background: rgba(46, 213, 115, 0.2);
    color: #2ed573;
}