:root {
    --cfast-bg-primary: #0f172a;
    --cfast-bg-surface: #1e293b;
    --cfast-bg-input: #334155;
    --cfast-color-text: #e2e8f0;
    --cfast-color-muted: #94a3b8;
    --cfast-color-danger: #f87171;
    --cfast-color-accent: #3b82f6;
    --cfast-color-accent-hover: #2563eb;
    --cfast-radius-md: 6px;
    --cfast-radius-lg: 12px;
    --cfast-shadow-elevated: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* ===== Global Reset ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--cfast-bg-primary);
    color: var(--cfast-color-text);
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Layout Container ===== */
.cfast-auth-container {
    width: 100%;
    max-width: 340px;
    padding: 40px;
    background-color: var(--cfast-bg-surface);
    border-radius: var(--cfast-radius-lg);
    box-shadow: var(--cfast-shadow-elevated);
}

.cfast-auth-title {
    margin: 0 0 20px 0;
    font-size: 18px;
    text-align: center;
    letter-spacing: 0.4px;
}

/* ===== Form Elements ===== */
.cfast-form {
    width: 100%;
}

.cfast-form-group {
    margin-bottom: 15px;
}

.cfast-input {
    width: 100%;
    padding: 10px;
    border: 0;
    border-radius: var(--cfast-radius-md);
    background-color: var(--cfast-bg-input);
    color: #ffffff;
    font-size: 14px;
}

.cfast-input:focus {
    outline: 1px solid var(--cfast-color-accent);
}

.cfast-button {
    width: 100%;
    padding: 10px;
    border: 0;
    border-radius: var(--cfast-radius-md);
    background-color: var(--cfast-color-accent);
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}

.cfast-button:hover {
    background-color: var(--cfast-color-accent-hover);
}

/* ===== Status Messaging ===== */
.cfast-status {
    margin-top: 10px;
    font-size: 13px;
    text-align: center;
    min-height: 18px;
}

.cfast-status--loading {
    color: var(--cfast-color-muted);
}

.cfast-status--error {
    color: var(--cfast-color-danger);
}

/* ===== Footer ===== */
.cfast-footer {
    margin-top: 15px;
    font-size: 12px;
    text-align: center;
    color: var(--cfast-color-muted);
}