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

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: -apple-system, BlinkMacOSystemFont, "Segoe UI", Roboto, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.form-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    padding: 40px 32px;
    width: 100%;
    max-width: 420px;
}

h1 {
    text-align: center;
    margin-bottom: 32px;
    color: #1a1a1a;
    font-size: 28px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #444;
    font-size: 15px;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.iti {
    width: 100%;
}

.iti__flag-container {
    padding-left: 12px;
}

button {
    width: 100%;
    padding: 16px;
    background: #6366f1;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
    margin-top: 12px;
}

button:hover {
    background: #4f46e5;
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

.success-message {
    margin-top: 20px;
    padding: 16px;
    background: #ecfdf5;
    color: #065f46;
    border-radius: 10px;
    text-align: center;
    font-weight: 500;
    display: none;
}