@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&display=swap');

:root {
    --primary-color: #000000;
    --accent-color: #5856d6;
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --text-main: #1d1d1f;
    --text-secondary: #86868b;
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center; 
    padding: 20px;
    -webkit-font-smoothing: antialiased;
}

.form-container {
    background-color: var(--card-bg);
    border-radius: 24px;
    box-shadow: 0px 20px 40px rgba(0, 0, 0, 0.04);
    
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
    max-width: 360px;
    transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
}

.form-container:hover {
    transform: translateY(-5px);
}

.title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    color: var(--primary-color);
}

.sub-title {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 24px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
}

#mail_input {
    width: 100%;
    height: 52px;
    padding: 0 16px;
    border-radius: 14px;
    border: 1px solid #d2d2d7;
    background-color: #fbfbfd;
    font-size: 16px;
    color: var(--text-main);
    outline: none;
    transition: all 0.2s ease;
}

#mail_input:focus {
    border-color: var(--accent-color);
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(88, 86, 214, 0.1);
}

#create {
    width: 100%;
    height: 52px;
    border-radius: 14px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#create:hover {
    background-color: #222;
    transform: scale(1.01);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

#create:active {
    transform: scale(0.97);
}

#create:disabled {
    background-color: #d2d2d7;
    cursor: not-allowed;
    transform: scale(1);
}

.down-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 16px;
    text-align: center;
    line-height: 1.4;
}

.support-link {
    margin-top: 40px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.support-link:hover {
    color: var(--accent-color);
}

@media (max-width: 380px) {
    .form-container {
        padding: 30px 20px;
    }
    .title {
        font-size: 1.8rem;
    }
}