:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --bg-dark: rgba(15,23,42,0.75);
    --text-light: #f9fafb;
    --muted: #cbd5e1;
    --radius: 20px;
    --transition: 0.25s ease;
}

/* Base */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
    color: var(--text-light);
    margin: 0;
}

/* Generic card */
.glass-card {
    background: var(--bg-dark);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: 0 18px 45px rgba(0,0,0,0.55);
    animation: fadeIn 0.4s ease-out;
}

/* Form */
.form-group {
    margin-bottom: 22px;
    position: relative;
}

.input-label {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 6px;
    display: block;
}

.input-field {
    width: 100%;
    height: 50px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    padding: 12px 14px;
    font-size: 16px;
    color: #fff;
    transition: var(--transition);
}

    .input-field:focus {
        outline: none;
        border-color: var(--primary-light);
        background: rgba(255,255,255,0.12);
        box-shadow: 0 0 0 3px rgba(99,102,241,0.25);
        animation: pulse 0.25s ease;
    }

/* Buttons */
.btn-primary {
    width: 100%;
    height: 52px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 10px 25px rgba(79,70,229,0.35);
    transition: var(--transition);
    cursor: pointer;
}

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 14px 30px rgba(79,70,229,0.45);
    }

    .btn-primary:active {
        transform: translateY(0);
        box-shadow: none;
    }

    .btn-primary.loading {
        opacity: 0.7;
        pointer-events: none;
    }

/* Icons */
.toggle-eye {
    position: absolute;
    right: 14px;
    bottom: 14px;
    font-size: 18px;
    color: var(--muted);
    cursor: pointer;
}

/* Animations */
@keyframes shake {
    0% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-6px);
    }

    40% {
        transform: translateX(6px);
    }

    60% {
        transform: translateX(-4px);
    }

    80% {
        transform: translateX(4px);
    }

    100% {
        transform: translateX(0);
    }
}

.shake {
    animation: shake 0.35s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.015);
    }

    100% {
        transform: scale(1);
    }
}