:root {
    --primary: #0f4c81;
    --primary-light: #4f7fab;
    --primary-lightest: #e4edf5;
    --accent: #2f8f68;
    --accent-light: #5cb08a;
    --accent-lightest: #e3f4ec;
    --dark: #2d3432;
    --bg: #f2f5f4;
    --surface: #ffffff;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #eef1f0;
    --border-dark: #e2e8e6;
    --danger: #ef4444;
    --success: #2f8f68;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

.container {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    padding: 16px;
    box-sizing: border-box;
}

.app-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin: 32px 0 24px 0;
    text-align: center;
}

.app-icon {
    width: 56px;
    height: 56px;
}

h1 {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    margin: 0;
    letter-spacing: -0.5px;
}

.app-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

.card {
    background: var(--surface);
    padding: 24px 20px;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.01);
    box-sizing: border-box;
}

.form-field {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
}

    .form-field label {
        font-weight: 700;
        font-size: 13px;
        color: var(--text);
        margin-bottom: 6px;
    }

    .form-field input {
        width: 100%;
    }

input[type="email"],
input[type="password"],
input[type="text"] {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-dark);
    font-size: 15px;
    font-weight: 600;
    box-sizing: border-box;
    background: var(--surface);
    color: var(--text);
}

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

button.btn-action {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    margin-top: 4px;
    box-shadow: 0 4px 6px rgba(15, 76, 129, 0.15);
    transition: all 0.2s ease;
}

    button.btn-action:active {
        transform: translateY(1px);
        box-shadow: 0 2px 3px rgba(15, 76, 129, 0.15);
        opacity: 0.95;
    }

.banner {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    line-height: 1.4;
}

.banner-error {
    background-color: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fee2e2;
}

.banner-success {
    background-color: var(--accent-lightest);
    color: var(--success);
    border: 1px solid var(--accent-light);
}

.auth-links {
    text-align: center;
    margin-top: 18px;
    font-size: 13px;
    color: var(--text-muted);
}

    .auth-links a {
        color: var(--primary);
        font-weight: 700;
        text-decoration: none;
    }

        .auth-links a:hover {
            text-decoration: underline;
        }