:root {
    --bg-void: #050505;
    --gold-base: #BEAE7E;
    --gold-gradient: linear-gradient(135deg, #BEAE7E 0%, #BEAE7E 100%);
    --error-color: #8a2a2a;
    --font-head: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
    --ease-lux: cubic-bezier(0.2, 0.0, 0.2, 1);
}

* {
    box-sizing: border-box;
    outline: none;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-void);
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    color: #fff;
    position: relative;
}

#cosmos {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.8;
    pointer-events: none;
}

.spotlight {
    position: absolute;
    top: -20%;
    left: 0;
    width: 100%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(190, 174, 126, 0.15) 0%, transparent 70%);
    z-index: 2;
    pointer-events: none;
}

.grain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 3;
}

.login-card {
    position: relative;
    z-index: 10;
    width: 440px;
    padding: 70px 50px;
    background: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 40px 100px -20px rgba(0,0,0,0.9);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s var(--ease-lux), transform 1.2s var(--ease-lux);
}

    .login-card.visible {
        opacity: 1;
        transform: translateY(0);
    }

    .login-card.shake {
        animation: microShake 0.3s cubic-bezier(.36,.07,.19,.97) both;
    }

.card-line {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gold-gradient);
    box-shadow: 0 0 15px rgba(190, 174, 126, 0.4);
}

.brand {
    font-family: var(--font-head);
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    text-align: center;
    margin-bottom: 5px;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.5));
}

.subtitle {
    text-align: center;
    font-family: var(--font-code);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: #555;
    margin-bottom: 40px;
}

.quote {
    font-family: var(--font-head);
    font-size: 1.2rem;
    line-height: 1.5;
    color: #ddd;
    font-style: italic;
    text-align: center;
    margin-bottom: 50px;
    opacity: 0.9;
    transition: opacity 0.5s;
}

.step-container {
    transition: opacity 0.5s var(--ease-lux), transform 0.5s var(--ease-lux);
}

.step-hidden {
    display: none;
    opacity: 0;
    pointer-events: none;
}

.step-authenticator {
    text-align: center;
    margin-bottom: 40px;
    color: #666;
    font-family: 'Inter';
    font-size: 0.85rem;
}

.input-group {
    position: relative;
    margin-bottom: 40px;
}

.input-field {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid #333;
    padding: 12px;
    color: #f5f5f5;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s;
}

    .input-field:focus {
        border-bottom-color: var(--gold-base);
    }

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px #000 inset !important;
    -webkit-text-fill-color: white !important;
    transition: background-color 5000s ease-in-out 0s;
}

.label {
    position: absolute;
    left: 0;
    top: 12px;
    color: #666;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    pointer-events: none;
    transition: 0.3s var(--ease-lux);
    font-family: var(--font-body);
}

.input-field:focus + .label, .input-field:not(:placeholder-shown) + .label {
    top: -15px;
    font-size: 0.6rem;
    color: var(--gold-base);
}

.input-group.error .input-field {
    border-bottom-color: var(--error-color);
}

.input-group.error .label {
    color: var(--error-color);
}

.error-text {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 5px;
    color: var(--error-color);
    font-size: 0.65rem;
    font-family: var(--font-body);
    opacity: 0;
    transform: translateY(-5px);
    transition: 0.3s;
}

.input-group.error .error-text {
    opacity: 1;
    transform: translateY(0);
}

.input-2fa {
    font-family: var(--font-head);
    font-size: 1.8rem;
    letter-spacing: 15px;
    text-align: center;
    border: 1px solid #333;
    background: #050505;
    width: 100%;
    color: var(--gold-base);
    padding: 15px 0;
    border-radius: 2px;
    caret-color: var(--gold-base);
}

    .input-2fa:focus {
        outline: none;
        border-color: var(--gold-base);
    }

    .input-2fa::placeholder {
        opacity: 0;
    }

.btn-main {
    width: 100%;
    padding: 16px;
    background: transparent;
    border: 1px solid #444;
    color: #fff;
    font-family: var(--font-head);
    font-size: 0.9rem;
    letter-spacing: 1px;
    font-style: italic;
    cursor: pointer;
    transition: 0.4s;
}

    .btn-main:hover {
        border-color: var(--gold-base);
        color: var(--gold-base);
        box-shadow: 0 0 25px rgba(190, 174, 126, 0.15);
        background: rgba(190, 174, 126, 0.05);
    }

.btn-back {
    width: 100%;
    margin-top: 20px;
    background: none;
    border: none;
    color: #444;
    font-family: var(--font-body);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: 0.3s;
}

    .btn-back:hover {
        color: #fff;
    }

.loader-overlay {
    position: absolute;
    inset: 0;
    background: #000;
    z-index: 20;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loader-line-bg {
    width: 120px;
    height: 1px;
    background: #222;
    position: relative;
}

.loader-line-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: var(--gold-gradient);
    transition: width 1.5s cubic-bezier(0.65, 0, 0.35, 1);
    box-shadow: 0 0 15px var(--gold-base);
}

.loader-text {
    margin-top: 20px;
    font-family: var(--font-code);
    font-size: 0.6rem;
    letter-spacing: 3px;
    color: var(--gold-base);
    text-transform: uppercase;
}

@keyframes microShake {
    0%, 100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-2px);
    }

    75% {
        transform: translateX(2px);
    }
}