:root {
    --color-primary: #00BCD4;
    --color-primary-dark: #0097A7;
    --color-on-primary: #ffffff;
    --color-danger: #E53935;
    --color-surface: #ffffff;
    --color-background-main: #f8f9fa;
    --color-text-high: #212529;
    --border-radius-card: 24px;
    --shadow-card: 0 8px 20px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background-main);
    color: var(--color-text-high);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 400px;
    width: 100%;
}

.form-card {
    background-color: var(--color-surface);
    padding: 35px;
    border-radius: var(--border-radius-card);
    box-shadow: var(--shadow-card);
    text-align: center;
}

    .form-card .app-title {
        font-size: 2.2rem;
        font-weight: 800;
        color: var(--color-primary-dark);
        margin-bottom: 30px;
    }

    .form-card h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 25px;
        color: var(--color-text-high);
    }

.error-message {
    background-color: #fce4e4;
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
    display: none;
}

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

label {
    display: block;
    text-align: left;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ced4da;
    border-radius: 12px;
    font-size: 1.1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.2s, box-shadow 0.2s;
}

    input[type="text"]:focus, input[type="email"]:focus, input[type="password"]:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.2);
        outline: none;
    }

.btn-primary {
    width: 100%;
    padding: 15px;
    background-color: var(--color-primary-dark);
    color: var(--color-on-primary);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s, transform 0.1s;
}

    .btn-primary:hover {
        background-color: var(--color-primary);
        transform: translateY(-1px);
    }

.link-auth {
    display: block;
    margin-top: 20px;
    font-size: 0.95rem;
    color: var(--color-primary-dark);
    text-decoration: none;
    font-weight: 600;
}

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


.validation-summary-errors {
    background-color: #fef2f2;
    border: 2px solid #fca5a5;
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

    .validation-summary-errors ul {
        list-style-type: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .validation-summary-errors li {
        color: #dc2626;
        font-size: 0.95rem;
        font-weight: 500;
        line-height: 1.5;
        padding: 0.35rem 0;
        display: flex;
        align-items: center;
    }

        .validation-summary-errors li:before {
            content: "✗";
            color: #ef4444; 
            margin-right: 0.75rem;
            font-size: 1rem;
            font-weight: bold;
        }

[data-valmsg-summary="true"] {
    border: none !important;
    background: transparent !important;
}

#error-message-box {
    border-radius: 10px;
    overflow: hidden;
}