* {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* FULL SCREEN BASE */
body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, #000000, #8b0000);
    display: flex;
    align-items: stretch;
    justify-content: stretch;
}

/* FULL PAGE CONTAINER */
.auth-card {
    background: #0d0d0d;
    width: 100%;
    min-height: 100vh;
    padding: 24px 18px;      /* MOBILE SAFE MARGINS */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* TITLE */
.auth-card h2 {
    color: #ff3333;
    text-align: center;
    font-size: 30px;         /* BIG TITLE */
    margin-bottom: 28px;
    letter-spacing: 1px;
}

/* INPUTS */
.auth-card input,
.auth-card select {
    width: 100%;
    padding: 18px;
    margin-bottom: 18px;
    background: #1a1a1a;
    border: 2px solid #333;
    border-radius: 10px;
    color: #fff;
    font-size: 18px;         /* BIG TEXT */
}

.auth-card input::placeholder {
    color: #aaa;
}

/* BUTTON */
.auth-card button {
    width: 100%;
    padding: 20px;
    margin-top: 10px;
    background: #ff2b2b;
    border: none;
    border-radius: 10px;
    font-size: 20px;         /* BIG BUTTON TEXT */
    font-weight: bold;
    color: #fff;
    cursor: pointer;
}

/* TOUCH FEEL */
.auth-card button:active {
    transform: scale(0.98);
    background: #cc0000;
}

/* MESSAGE */
.auth-msg {
    text-align: center;
    font-size: 16px;
    margin-bottom: 15px;
}

.auth-msg.error { color: #ff6666; }
.auth-msg.success { color: #00ff99; }

.footer-text {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #888;
}

/* DESKTOP REFINEMENT ONLY */
@media (min-width: 768px) {
    body {
        align-items: center;
        justify-content: center;
    }

    .auth-card {
        min-height: auto;
        max-width: 520px;
        border-radius: 14px;
        box-shadow: 0 0 30px rgba(255,0,0,0.5);
        padding: 32px;
    }
}