:root {
    --bg-gradient: linear-gradient(135deg, #10141f 0%, #203040 100%);
    --card-bg: #182233;
    --primary: #1abc9c;
    --accent: #27ae60;
    --text: #f1f1f1;
    --text-light: #b1b7c5;
    --border: #22304a;
    --input-bg: #222b3a;
    --input-border: #33405c;
    --shadow: 0 6px 24px rgba(16, 20, 31, 0.25);
    --gap: 0.6rem;
}
html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'Montserrat','Roboto', Arial, sans-serif;
    background: var(--bg-gradient);
    color: var(--text);
}
.container {
    max-width: 430px;
    margin: 60px auto 0 auto;
    background: var(--card-bg);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 2.5rem 2rem 2rem 2rem;
    position: relative;
}
h2, h1 {
    color: var(--primary);
    text-align: center;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: 1.5px;
    font-size: 2rem;
}
form {
    display: flex;
    flex-direction: column;
    gap: 1.05rem;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
label {
    font-size: 1.02rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0;
    margin-left: 2px;
    letter-spacing: 0.05em;
}
form input[type="email"], form input[type="password"], form input[type="text"] {
    width: 100%;
    padding: 0.62rem 0.8rem;
    border: 1.5px solid var(--input-border);
    border-radius: 8px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 1rem;
    transition: border 0.2s;
    box-sizing: border-box;
    margin-top: 0;
    outline: none;
}
form input[type="email"]:focus, form input[type="password"]:focus, form input[type="text"]:focus {
    border-color: var(--primary);
}
button[type="submit"] {
    display: block;
    width: 100%;
    background: var(--primary);
    color: #fff;
    font-size: 1.1rem;
    font-weight: bold;
    padding: 0.85rem;
    border: none;
    border-radius: 8px;
    margin-top: 0.7rem;
    cursor: pointer;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 12px rgba(26, 188, 156, 0.12);
    letter-spacing: 0.02em;
}
button[type="submit"]:hover {
    background: var(--accent);
}
.link-aux {
    display: block;
    text-align: right;
    margin-top: 0.7rem;
    color: var(--primary);
    text-decoration: none;
    font-size: 1em;
    font-weight: 500;
    transition: color .18s;
}
.link-aux:hover {
    color: var(--accent);
    text-decoration: underline;
}
.erro-msg {
    margin: 0.5rem 0 1.2rem 0;
    color: #ff4343;
    background: #1a1010;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 1rem;
    border: 1px solid #7e3232;
    word-break: break-word;
}
.sucesso-msg {
    margin: 0.5rem 0 1.2rem 0;
    color: #27ae60;
    background: #182c1a;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 1rem;
    border: 1px solid #27ae60;
    word-break: break-word;
}
@media (max-width: 600px) {
    .container {
        border-radius: 0;
        box-shadow: none;
        padding: 1.5rem 0.5rem;
        margin-top: 20px;
    }
    h2, h1 {
        font-size: 1.2rem;
    }
}