:root {
    --warna-putih: #ffffff;
    --warna-hitam: #121212;
    --warna-merah: #e53935;
    --warna-merah-hover: #b71c1c;
    --garis-pembatas: #e0e0e0;
}

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

body {
    background-color: var(--warna-putih);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--warna-hitam);
    height: 100vh;
    display: flex;
}

.auth-container {
    display: flex;
    width: 100%;
    height: 100%;
}

/* Sisi Kiri (Sidebar Hitam - 30% kontras) */
.auth-sidebar {
    flex: 1;
    background-color: var(--warna-hitam);
    color: var(--warna-putih);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.auth-sidebar .brand a {
    color: var(--warna-putih);
    text-decoration: none;
    font-weight: 800;
    font-size: 1.3rem;
}

.sidebar-quote {
    font-family: "Georgia", serif;
    font-size: 2rem;
    line-height: 1.4;
    max-width: 400px;
    margin-bottom: 100px;
}

.sidebar-quote span {
    color: var(--warna-merah);
    /* Highlight text merah */
}

/* Sisi Kanan (Form Putih - 50% Dominan) */
.auth-content {
    flex: 1.2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background-color: var(--warna-putih);
}

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

.form-box h2 {
    font-family: "Georgia", serif;
    font-size: 2.2rem;
    font-weight: 900;
    margin-bottom: 8px;
}

/* Input Styling dengan Aksen Hitam & Merah */
.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--warna-hitam);
    /* Border hitam tegas */
    font-size: 0.95rem;
}

.input-group input:focus {
    outline: none;
    border-color: var(--warna-merah);
    /* Berubah merah pas diketik */
}

/* Tombol Merah (20% Aksen) */
.btn-auth {
    width: 100%;
    padding: 14px;
    background-color: var(--warna-merah);
    color: var(--warna-putih);
    border: none;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.2s;
}

.btn-auth:hover {
    background-color: var(--warna-merah-hover);
}

.auth-footer a {
    color: var(--warna-merah);
    text-decoration: none;
    font-weight: 700;
}

@media (max-width: 768px) {
    .auth-sidebar {
        display: none;
    }
}