:root {
    --primary-blue: #1a73e8;
    --dark-blue: #0d47a1;
    --light-blue: #e8f0fe;
    --golden-yellow: #ffc107;
    --dark-gold: #ffa000;
    --text-color: #202124;
    --light-gray: #f5f5f5;
    --border-color: #dadce0;
    --error-color: #d93025;
    --primary-success: #28a745;
    --secondary-success: #e8f5e9;
}

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

body {
    background-color: var(--light-blue);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
    padding: 40px;
}

h1 {
    color: var(--primary-blue);
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-color);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: border 0.3s;
}

input:focus {
    border-color: var(--primary-blue);
    outline: none;
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

.input-group {
    display: flex;
}

.country-code {
    padding: 12px;
    background-color: var(--light-gray);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 4px 0 0 4px;
    font-size: 16px;
}

.password-eye {
    padding: 12px;
    background-color: var(--light-gray);
    border: 1px solid var(--border-color);
    border-left: none;
    border-radius: 0 4px 4px 0;
    font-size: 16px;
}

.phone-input {
    border-radius: 0 4px 4px 0;
}

.success-message {
    color: var(--primary-blue);
    font-size: 12px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}

.box-success-message {
    color: var(--primary-success);
    background-color: var(--secondary-success);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}

.error-message {
    color: var(--error-color);
    font-size: 12px;
    margin-top: 6px;
    display: none;
}

.box-error-message {
    color: #F4320B;
    background-color: #FEEBE7;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}

.btn {
    background-color: var(--golden-yellow);
    color: var(--text-color);
    border: none;
    border-radius: 4px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: var(--dark-gold);
}

.btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.link {
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 14px;
    display: block;
    text-align: center;
    margin-top: 20px;
}

.link:hover {
    text-decoration: underline;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}